What factors should be considered when choosing lamps

How to identify the authenticity of a crystal ball

Level 3: What would I do if I went to the moon? A 300-word essay: What Would You Do? What would you do if you landed on the moon? 300 words

Go see how beautiful the moon is, how long the Milky Way is, and how bright the twinkling stars are-----.

If I've Landed on the moon, I would let The moon become more beautiful. Let the flowers, plants and trees live there. I will give them enough carbon dioxide so that the small animals can come and play.er. I will also give them enough. oxygen so that more humans can live there, so that the moon will be full of joyful singing and laughter, making the moon more happy, excited, joyful and beautiful. I also want to create a spaceship that can allow animals and us humans to sit. on it and see what the other planets look like. How is the environment there? Then let people and animals live there to see if there are aliens there. Then look back and see what our own earth is like, if it is beautiful, big? or spectacular - ---.I thought again, which is more beautiful, the moon or the earth. But I don't know, if the moon is beautiful, then the other planets should be more beautiful, right? I seem to see goats grazing, lions arguing with tigers Running, seeing againThere was an argument there, and it turned out to be a cat and a mouses. -----

I really want to go to the moon. Maybe I can go there when I grow up, or maybe that! my wish will not come true. If I can't go, I can only fulfill my wish in my dream. But I will definitely work hard and hope to go to the moon to see if it is as beautiful, beautiful and spectacular. as I imagined!

If I land on the moon. I first want to study if there is life on the moon.

I will first take a walk on the moon to see if there is life on the moon. There are traces of life on it. Then I'll look for big craters on the moon, if so I'll go down and see if there's any life hidden there. If I find traces of life somewhere, I will immediately take some. these traces on earth and study them. If I find them, he is alive, which will be a major discovery for humanity, and I will be especially happy because I didn't come to yourre in vain.

I also want to understand why there is a moon on the moon. Does dust have the ability to sterilize Why does it float when people land on the moon? , very cool when planted in moon dust? I will also bring some earth back to the moon to study its contents. What are the ingredients? Do you know the difference between earth on the moon and earth on earth?. .. There are so many things I want to know!

If I went to the moon, I would first want to know Solve for people the mystery that there is no life on the moon Finally, break through everything. the mysteries that I want to discover little by little.

It would be great if I could land on the moon!

The experiment on "no resistance" is due to the fact that on the moon, due to its small mass and its low gravity, there is almost no air, which is an ideal "vacuum laboratory". Therefore, the famous experiment in which a large ball and a small ball fall together to the ground like that of Galileo on the Leaning Tower of Pisa can be verified.

“If I land on the Moon”

If I land on the Moon, I would first study if there is life on the Moon.

I'm going to take a walk on the moon first to see if there are any traces of life on it. Then I will look for big craters on the moon, if there are any, I will go down and see if there is life hidden in them. If I find traces of life somewhere, I will immediately bring some of them back to earth and study them. If it is discovered that he is alive, itwill be a major discovery for humanity, and I will be particularly happy about it. Because I did not come to Earth in vain.

On the moon, I will also use an excavator to dig a large, very deep pit. I want to dive in and see the structure of the Earth, explore what its center looks like and what things are so attractive to humans.

I also want to know why the dust on the moon has the ability to kill bacteria? Why do people float when they land on the moon? Why do algae become very, very tender when planted in moon dust? I also want to bring soil back to the moon and study what ingredients it contains? Do you understand the difference between the ground on the Moon and the ground on Earth? ...There are so many things I want to know!

If I went to the moon, I would first solve the mystery of the lack of life on the moon. Finally, I rlittle by little solved all the mysteries I wanted to know.

It would be awesome if I could go to the moon!

If I landed on the moon, I would go see if there is something there that people know the goddess-like Chang'e, the charming Jade Rabbit and the sincere Wu Gang; see if Guanghan Palace is cold and desolate; Wu Gang is still cutting down the osmanthus...

If I went to the moon, I would see that the surface of the moon is covered with complex craters of different sizes. I know most of these craters were. caused by meteorite impacts. I would also see that there are many craters on the moon, there are endless mountains, vast plains and sunken basins.

If I went to the moon, I would find that there is none. no trace of human habitation on theone, and I don't hear any sound. The whole moon is silent and desolate. If you scatter plant seeds from the earth to the moon and water them every day, they will still die, because of the temperature. on the moon varies greatly between day and night, and the natural environment is very harsh.

If I land on the moon If I go to the moon, I may find a thin piece of ice on the moon, which proves that there may be water resources on the moon. I will definitely collect some rocks from the plain, take pictures and bring them back for inspection.

If I went to the moon, I wanted to. lay on the beautiful moon and look at the galaxies in space. I stood on the moon and admired the immensity of space. I saw what scientists call the nine planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn. Uranus, Neptune and Pluto. The one I never tire ofsee, this is our Earth. She is like a blue and white crystal ball suspended high in space: brown** The earth is embedded in the blue ocean, with a few white clouds floating. no wonder these lunar explorers called it "the most beautiful oasis floating in the vast universe"!

What a beautiful moon, what a beautiful space if I could really land there! the moon, living on the moon for a long time and enjoying the beautiful space every day, that would be great!

Aim *** and fire a cannonball

If I landed on the moon If I landed on the moon On the moon, I will let TaiFather Yang spread the sun on the black moon, making it full of light. If I went to the moon, I would plant flowers, trees and grass on the moon to make it full of life. If I went to the moon, II would give it wind, snow, rain, dew... May the moon have natural phenomena like the earth. If I land on the moon, I will let many small animals on the moon live happily, happily and warmly in this new home. If I land on the moon. I will take humans to the moon too, but we can't let them destroy the moon, because we have already destroyed the earth, and we must protect this new home! If I land on the moon...

​​​​​​​​Confidence is the secret to success. After understanding the true meaning of self-confidence, even established facts still have hope of turning around.

Confidence is a kind of power. It is a potential, valuable and powerful force. With it, you can accomplish great, earth-shaking things.

Trust is the principle of life. It is impossible for uno one that everything is going well. No matter what difficulties she encounters or how many failures she experiences, she must work hard to overcome difficulties and stand proudly like the fearless pine tree.

Confidence is a kind of possession and courage. It is with this passion that we can pave our own path in life and represent the colorful world of tomorrow.

Without self-confidence, how could King Gou Jian of Yue cut off King Wu's golden sword? Without self-confidence, how could the Western Qin Dynasty leave Hangu in the East and dominate the world? Without self-confidence, how could Baier Qinguan replace Liu Han's banner? Without self-confidence, how was Genghis Khan's cavalry able to set foot on the Danube?

Ah! Confidence is the pillar of failure and the foundation of success. Self-confidence gives me courage and strength. Thanks to her, failure no longer follows me andVictory no longer escapes me. It makes life more fulfilling and interesting, and learning more dynamic. Self-confidence is a fiery sun that allows me to enjoy its warmth; self-confidence is a jewel in my heart that shines every time I use it. Self-confidence is a navigation light on the journey, guiding me to cross a path. The threshold of the road is difficult and dangerous.

I want to tell the world loud and clear: “I am confident, I can do it!” » This is my resounding declaration as successor in the new century!

If I landed on the moon

If I landed on the moon, I would build the first observatory there, then I would build a radio transmitter station there. , transmitting all data on the Moon to Earth. Since there is no water, no trees, no air and no life on the moon, I brought some things with me, including une super excavator, a cornucopia containing as much water as the Yangtze River per person, a bag of tree seeds. , and an air extraction machine and some animal larvae and a large bottle of nutrient solution. After developing the moon, it will become a planet that can be inhabited by humans. There will be air, trees, trees, etc. By then, people will be able to have them too. We took a spaceship to live on the moon.

How wonderful the world will be then!

Question 1: How to distinguish real and fake crystals How to distinguish real and fake crystals

Temperature: Under normal circumstances, the temperature of natural crystals is lower than that of other precious stones. It will feel slightly cold when you touch it with your palm or cheek. This method is only suitable for larger crystal balls or crystal rods, becauseIt is difficult to feel the temperature difference of crystals that are too small, such as crystal hands or pendants.

Weight: Natural crystal is a stone-like substance with high density and little weight. When purchasing crystals, weigh them on your hands first if you find that the relatively light crystals are likely fake glass or plastic crystals. Nowadays, the weight of crystals made by the “crystallization” method is very close to that of natural crystals. It is not easy for ordinary people to separate them only by observing other aspects, such as the presence of "inclusions", the refractive index. , etc., can we identify the crystals Real or fake.

Refraction: Natural crystal has birefringence. Place a black line on a white cloth or paper, place the crystal on it and look through the crystal. The black line will be refracted in twobalanced or overlapping black lines. If the birefringence is not visible, it is probably a fake glass crystal. But this method is only suitable for identifying the difference between glass and natural crystal. Nowadays, crystals made by the “crystallization” method also have a refractive index. This method is not suitable for identifying the authenticity of white crystal balls, because the refractive index of white crystal balls is not high, so this identification method may not be accurate.

Energy: Real crystal can emit energy. When purchasing a crystal column, use one hand to pick up the column with the tip of the column facing the palm of the other hand. The distance is 2 to 3 inches, and it is best to move it in a slow, closed circle. The palm of your hand can feel the energy emitted by the crystal pillar projecting into the palm, and the sensationis very obvious. Of course, there are a small number of people who have low sensitivity to crystal energy and cannot sense its energy when they come into contact with crystals. This method is not applicable. But if you can feel the energy emitted from the crystal using this method, you can be sure that the crystal on your hand must be a real natural crystal.

Inclusions: All natural crystals have “inclusions” (i.e. minerals or bubbles). It only depends on the type and size of the "inclusions". These “inclusions” are more or less visible to the naked eye. If you see a crystal clear crystal, but no “inclusions” are visible, you need to be careful. It may be a fake glass crystal. I believe that if you want to buy such a rare natural crystal, you should use proper instruments to identify it before paying for it. Even an extremely clear crystalide should contain something that can be seen with a professional microscope.

(1) Visual inspection: During the formation process of natural crystal, it is often affected by the environment and always contains impurities. When viewed against the light, you can see clear, even, thin horizontal stripes. or kitten-like substances. Fake crystal is mainly melted with low-grade crystal and glass slag, and is imitated by polishing, coloring and without uniform scratches and chattens.

(2) Licking your tongue: Even if there is inflammation During hot summer days, licking the surface of the natural crystal with your tongue will also give you a cold and fresh feeling. Fake crystal won't give you a cool feeling.

(3) Lighting: When the natural crystal is placed vertically under the sun, it will emit a beautiful shine regardless of the light.ngle under which it is seen. Fake crystals cannot.

(4) Hardness: Natural crystal has high hardness. Use gravel to lightly scratch the jewelry without leaving marks; if there are traces, it is a fake crystal.

(5) Check with a polarizer: if you turn 360 degrees under the polarizer and there are four light changes and four dark changes, it is a natural crystal, and if it does not There's no change, it's a fake crystal.

(6) Check with dichroism: Natural amethyst has dichroism, while fake crystal does not.

(7) Inspect with magnifying glass: Use magnifying glass ten times to inspect under transmitted light. If bubbles can be found, this can basically be classified as a fake crystal.

(8) Check with hair: Place the crystal on a hair. If the human eye can see the double shadow of hair through the crystal, it is a natural crystal, prinmainly because the crystal has a double refraction. .

(9) Test with thermal conductivity meter: Adjust the thermal conductivity meter to green grid 4 to test the gemstone. Natural crystal can go up to **2 grids, while fake crystal does not go up. . When the area is large, it amounts to **A grid acume.ws/CRYSTAL/web_c/Mainpage2...>>

Question 2: How to distinguish the authenticity. of the crystal ball and see if there are ice cracks inside, yes. It's not that there are bubbles. The bubbles are fake. A real stone should be cold to the touch.

Question 3.: How to distinguish the authenticity of a crystal? The easiest way is: get a bowl (use a plastic bowl), cover with water and place the crystals in the water. Then put it in the refrigerator until it becomes ice. After freezing in ice, remove the ice from the bowl and the crystalswill have frozen in the ice. Boil another pot of water and put ice in it. Principle: If it is a real crystal, there is no need to worry about such a huge temperature difference. Otherwise it's false. The fake crystal will immediately disintegrate and collapse. You have been taught the method, it just depends on your willingness to do it. Methods to identify crystal and glass without damage

1. Wipe or wash the craft you want to identify once it is dry, lick the craft with the tip of your tongue. If it's cold, it's one. crystal product. If there is a cold feeling, it is a crystal product. The direction of temperature is glass. When testing, try not to hold the sample with your hands or place it near a heat source (under the sun, next to a stove) to avoid errors due to an increase in temperature of the sample.

2. Observe the craftsmanshipec a magnifying glass. Inside the glass, there are often swirl or arc-shaped lines caused by uneven melting, but there are absolutely no lines in the crystal. Additionally, we often find many bubbles in glass and very few in crystal.

3. For a crystal ball, you can place it on a newspaper and look at the newspaper underneath from the top of the crystal ball. If it is a real crystal, the writing on the journal will appear duplicate. .movie. If it is a glass product (including crystal glass), the writing on the journal will always only have one image. For greater accuracy, roll the sphere lightly on a newspaper and observe again.

4. For crystal lenses, they can be checked in a polarizer. Adjust the polarizer to the orthogonal position. At this time, the field of vision is completely black. Then place the crystal glasses between the upper and lower polarizers.Lenses and polarizers do not have to be strictly parallel. They may be slightly tilted. Lenses and polarizers have a gap. Cut the angle, then rotate the glasses lenses. If it is made of real crystal, there will be obvious brightness changes in the field of view, for example if it is always dark when rotating, then the glasses lenses are made of glass or crystal glass ( lower quality fused crystal glass).

5. When traveling, the polarizer is not convenient to carry. You can bring two polarizers with a diameter of less than 40mm (or two smaller polarizers for photography). One person must hold two polarizers during the measurement. completely black orthogonally, and another person holds the glasses and rotates them between the two polarizers. If there is a significant change in brightness, it is a true crystal clear product. If the darkness remains unchanged, it is a glass product.

Crystal products are particularly easy to confuse with glass products, especially when illuminated by light, it is more difficult to distinguish authenticity. However, being two different materials, there are big differences between them. Glass has very low hardness, is light to the touch and does not show color when exposed to light.

To distinguish crystal and glass, we mainly rely on the following four points:

1. Distinguish objects by listening to sounds. When you tap the container with your hand, the sound of crystal products is crisp and persistent, while the sound of glass products is dull and echoless.

2. The “weight” is different. For two objects of the same size, the crystal product is heavier than the glass product.

3. Take a closer look at the refractive index. Under the same light, the index dThe refraction of crystal products will be better than that of glass products, and they can transmit colorful light, while glass products will not appear colorful light.

4. Different hardnesses. Crystal is harder than glass. When you scratch the glass with crystal, it will leave marks on the glass surface. However, scratching the crystal with glass will not leave any marks. What is the difference between natural crystal and synthetic crystal? There are too many fake amethysts and citrines. One characteristic that distinguishes natural crystals from synthetic crystals is the luster of the crystal. The surface of natural crystal jewelry has a greasy sheen, but the surface of synthetic crystal jewelry has a glass sheen. on the surface. Synthetic crystal.

Although crystal is not a precious stone, it is becoming more and more popular among men, women and children around the world.nde whole due to its unparalleled medical effects and low price. As a crystal lover, everyone hopes to have all kinds of crystals whether natural or synthetic, but they must want to know whether their crystal is synthetic or natural.

Colorless crystal necklaces and citrine necklaces on the market today can be considered a mix of natural and synthetic, while the majority of colored crystal necklaces are synthetic crystals. There are fewer true natural colored crystals and even fewer are used to make necklaces.

The greatest characteristic of synthetic crystal is that it has daughter crystal nuclei. synthesisIf the crystal has a crystal core, it is easier to judge because the crystal is usually a long column of colorless plates with clear boundaries with the surrounding synthetic crystals. However, there are recent criescolorless synthetic resins on the market. Because the crystal nucleus and the synthetic crystal are colorless, and there are natural inclusion features in the crystal nucleus or bubbles between the crystal nucleus and the synthetic crystal, some have experimented. It is easy for people to confuse it with a natural crystal. If you look carefully, you will find that a kind of inclusion only exists in the Zi and the Lord. There is a feeling of being intercepted by an invisible wall around him. is broken but not extended. The difference between crystal nuclei and synthetic crystals...>>

Question 4: How to identify the authenticity of crystals? Natural crystal is one of the most popular jewelry among women. Due to the ease of counterfeiting, there are many jewelry items on the market that are made from glass or synthetic crystal instead of natural crystal, causing confusion.on and confusion among those who love the natural. crystal jewelry. However, the identification methods presented on the Internet or in some books and periodicals require either high professional knowledge, complex instruments and equipment, or the methods themselves are wrong. I am engaged in the crystal production and sales industry. Now I will share with you some experiences and methods of crystal identification, I hope it will be useful to everyone. Common natural crystal substitutes on the market mainly include synthetic crystal and glass products. The identification methods are shown below:

Synthetic crystal

The composition and structure are exactly the same as natural crystal, Especially, when the inside of the crystal is very clean and no characteristics are visible, even the identification inlaboratory is difficult and large instruments must be used. In this case, it is difficult to distinguish natural crystals from synthetic crystals only with the naked eye and with portable instruments like a ten-fold magnifying glass. But there is also a less simple method to use, which consists of placing the crystal to be tested at room temperature and waiting for its temperature to stabilize to feel how cold it is with your hands. Generally speaking, natural crystal feels cooler, while synthetic crystal or glass has a warmer feel. However, this method is greatly affected by weather conditions and environment and is not applicable in winter. And since individuals have different feelings about temperature, it is only an auxiliary identification method. However, there will be more or less inclusions in most natural crystals, which experts often call coton, wisps, clouds, mineral inclusions, etc., forming green ghosts, various colors and other varieties, full of vitality. Synthetic crystal is relatively clean, but sometimes the following characteristics will appear, which can be determined as synthetic crystal:

1) A layer of dust will fall on the glass top that has not been wiped for a period of time. This phenomenon must be You've seen them all. If you see a "desktop dust" type phenomenon inside the crystal, that is, there are many very fine gray or white dots distributed over one plane or several parallel planes, and the rest of the crystal is very clean. It is therefore essentially synthetic crystal.

2) There are sometimes very fine inclusions resembling empty tubes in synthetic crystals. These empty tubes are basically parallel, sometimes leading to the surface, or they may be largerat one end and smaller at the other. , like nails. This is only found in synthetic crystals and can be a flux residue during synthesis. It is also a synthetic crystal.

3) There are virtually no green crystals in natural crystals, or they are extremely rare. For varieties such as Green Ghost and Green Hair Crystal, the inclusions inside are green, but the crystal itself is still colorless and transparent. Therefore, the large number of green and transparent crystals that appear on the market are basically color-processed, and most of them are synthetic crystals themselves.

4) The price of natural crystals ranges from tens to hundreds, depending on the size of the crystal, and the wholesale price is also several tens of yuan.

Glass

Very inexpensive imitations, available in various colors, sometimes translucent, relatively easy to identifyify. Those with the following characteristics can be considered glass:

1) Many books teach people to distinguish crystal balls from glass balls by looking at the hair ghost, which is to put a hair underneath and looking through the ball. Hair, if it becomes two hairs, it's crystal (natural or synthetic), if it's still one hair, it's glass. However, this method has some limitations: the ball cannot be too small, and it will not work well if it is a ball on a bracelet. And when you look, you should pay attention to turning the crystal ball to observe, not all directions will produce double images. I don't like crystal balls very much, so I don't know how to look at them. However, I would like to remind friends who want to buy crystal balls: these "crystal balls" which are not small,very clean. inside, and not too expensive you have to be careful. They are very expensive. It may be synthetic crystal or glass when purchasing, be sure to request a certificate of expertise issued by a nationally recognized professional body. But sometimes, the identification certificate is not necessarily reliable. As we all know, there are also fake identity certificates.

2) Bubbles can only appear in the glass, and they can be large or small. However, there are sometimes spherical inclusions in natural chalcedony. It's easy to think they're bubbles without. being careful. The difference is that the surface of the bubbles is very bright and reflective, while the surface of the inclusion body is much darker. It requires experience and you can master it by reading more.

3) Glass products are usually cast or blown, whilethe crystal is ground then polished. For example, crystal beads are sometimes not round enough and there are planes or gaps left in some places and the facet sizes of faceted crystals may be inconsistent. These "flaws" are actually labels of the crystal, because glass. may only show indentations when molded (as seen on many plastic products) or whorls when blown.

4) Swarovski “Crystal”. Originally...>>

Question 5: How to identify the authenticity of different crystals? 1. How to identify real and fake crystals (1) Visual inspection: During the formation process of natural crystals, they are often affected by the environment and always contain impurities. When viewed against the light, you can see light, uniform and fine. horizontal stripes or catkin-like substances. The false crystal is mainlynt fused with lower quality crystal and glass slag, and is imitated by polishing, coloring and without uniform scratches or chattens. (2) Licking the tongue: Even in hot summer days, licking the surface of the natural crystal with your tongue will have a cold effect.And a cool feeling. Fake crystal won't give you a cool feeling. (3) Lighting: When the natural crystal is placed vertically under the sun, it will emit a beautiful shine no matter what angle you view it from. Fake crystals cannot. (4) Hardness: Natural crystal has high hardness. Use gravel to lightly scratch the jewelry without leaving any marks, it is fake crystal. (5) Check with a polarizer: If you rotate 360 ​​degrees under a polarizer and there are four light changes and four dark changes, it is a natural crystal, and if it does not there is no change, it is a fake crystal. (6) Check withec dichroism: Natural amethyst has dichroism, unlike fake crystal. (7) Inspect with magnifying glass: Use ten times magnifying glass to inspect under transmitted light. If bubbles can be found, this can basically be classified as a fake crystal. (8) Check with hair: place the crystal on a hair. If the human eye can see the double shadow of hair through the crystal, it is a natural crystal, mainly because the crystal has birefringence. (9) Test with thermal conductivity meter: Set the thermal conductivity meter to 4 green grids to test the gemstones. Natural crystals can go up to **2 grids, while fake crystals don't go up to *. *1 grid. How to choose crystal products? (1) Look at the material selection: for crystalline products with well-selected materials, there should be no gas-liquid inclusions distributed in the form ofstar points, clouds and flocks. The texture is pure, smooth and crystal clear. If there are cracks and stains of different shades, this is a defective product. (2) Look at the manufacturing: The processing of crystal products is divided into two types, namely grinding and engraving. For example, crystal necklaces, bracelets, earrings, etc. are abrasive products; Guanyin statues, painted snuff boxes, etc. are sculptures. A well-made crystal product should be exquisite, which can not only fully display the external beauty of the crystal product (shape, style, symmetry, etc.), but also maximize its inner beauty (crystal and translucent color). (3) Look at the polishing: The quality of polishing directly affects the value of crystal products. The crystal must be polished with emery during the processing process. Rough production will leave friction marks on the surface of the screamstal. Good crystal products naturally have better transparency and luster. According to the local dialect, they are “head and foot of fire”. (4) Check the holes: For crystal products (such as necklaces, bracelets, Buddhist beads), check whether the holes are straight, whether the thickness of the holes is uniform, and whether there are small cracks . The wall of the hole should be clear and transparent, without “white marks”. (5) Look at the color: Even within the same type of crystal, the textures and colors of different parts vary. If it is a single color, the color must be uniform; if there are light shades on the same crystal, the tone and texture should be beautiful and generous. (6) Check the coordination: When you buy crystal jewelry, you should try it on to see its size, tightness and length. If the ornaments are inlaid, check to see if they are firm, straight and coordinated.You should also pay attention to whether the style and color of crystal jewelry coordinates with your body shape, skin color, face shape, and clothing. 2. The meanings represented by crystals of different colors. Colorless crystal: represents purity and altruism. It can improve people's aura and eliminate distracting thoughts. Purple Crystal: Represents romance and marriage. The color is noble. **Crystal: represents wealth and good luck. Brown crystal: represents stability and peace. Green crystal: represents justice and development. Green Ghost Crystal: Represents good fortune and a prosperous career. White Ghost Crystal: Represents purity and is used for spiritual practice. Red Ghost Crystal: Represents a prosperous career and prosperous wealth. Golden Hair Crystal: The most beautiful and supreme. Red-Haired Crystal: Heatthem and lively. Huang Fa Jing: prosperous and prosperous. Black-Haired Crystal: Promotes wealth and relieves misfortunes. Green hair crystal: happiness and good luck. Silver-haired crystal: prospers and wards off evil spirits. Pyramid crystal: gather energy, seek good luck and avoid bad luck. Water Bile Crystal: Magical and supernatural. Decorative crystal: a microcosm of nature, a window that communicates between man and nature. The meanings represented by the different shapes of crystals Crystal ball: answer all requests. Used for meditation, prediction and is a symbol of magical power. The crystal ball represents perfection, roundness and harmony, and helps make wishes come true. Hexagonal column: represents stability and peace. The hexagon is said to be the most stable shape in nature. Seven-star chart: an equilateral triangle whose size is equal to seven, i.e.ire that each side measures seven inches or seven minutes, layered from top to bottom, and a crystal is placed in each corner... >>

Question 6: How to identify the authenticity of the crystals? Here are the methods to distinguish real from fake:

⑴Research: During the formation process of natural crystal, it is often affected by the environment and always contains impurities. When viewed against the light, you may see a faint glow. , uniform, thin horizontal lines or kitten-like substance. Fake crystal is mainly melted with low-grade crystal and glass slag, and is imitated by polishing, coloring and without uniform scratches and chattens.

⑵ Tongue licking: Even in hot summer days, licking the surface of the natural crystal with your tongue will give you a cool feeling. Fake crystal won't give you a cool feeling.

⑶Lighting: When the natural crystal is placed vertically under the sun, it will emit a beautiful shine no matter what angle it is viewed from. Fake crystals cannot.

⑷Hardness: Natural crystal has high hardness. Use gravel to lightly scratch the jewelry without leaving marks; if there are traces, it is a fake crystal.

⑸ Check with a polarizer: if you turn 360 degrees under the polarizer and there are four light changes and four dark changes, it is a natural crystal, and if there is no has no change, it's a fake crystal.

⑹Use dichroism to check: natural amethyst has dichroism, while fake crystal has no dichroism.

⑺Inspect with magnifying glass: Use ten times magnifying glass to inspect under transmitted light. If bubbles can be found, they can essentially be classified as fake crystals.

⑻ Check withHair: Only for round crystal balls. Put a crystal ball on a hair. If the human eye can see the double shadow of the hair through the crystal, it is a crystal ball. Mainly because the crystal is birefringent. But this does not allow us to distinguish between natural crystals, cultivated crystals and fused crystals. Only other substances, such as glass, can be distinguished.

⑼ Test with thermal conductivity meter: Set the thermal conductivity meter to 4 green grids to test the gemstone. Natural crystals can go up to **2 grids, while fake crystals do not go up when the area is. large, they amount to ** A grid.

Here are the ways to identify the quality of crystals:

①Look at the raw materials: chooseFor crystal products made from fine materials, no glue or cotton wadding should be be visible; the texture must be puree, smooth and clear.

②Look at the manufacturing: The processing of crystal products is divided into two types, namely grinding and engraving. For example, crystal necklaces, bracelets, earrings, etc. are abrasive products; Guanyin statues, painted snuff boxes, etc. are sculptures.

③Look at the polishing: The quality of polishing directly affects the value of crystal products. Polishing is divided into soft polishing and hard polishing.

④ Check the holes: For crystal products (such as necklaces, bracelets, Buddhist beads), check whether the holes are straight, whether the thickness of the holes is uniform, and whether it there are small cracks. The wall of the hole should be clear and transparent, without “white marks”. ⑤ Look at the color: Even within the same type of crystal, the texture and color of different parts vary. If it is a single color, the color must be uniform; ifThere are shades of light on the same crystal, the tone and texture must be beautiful and generous.

Question 7: How to identify the authenticity of crystals. Natural crystals are a type of gemstone. The ancient medical scientist Li Shizhen called them “water jade” and “Bodhisattva stone.” in “Collection of medical matters”. The natural crystal necklace, handcrafted from it through careful processing, can have magical effects after wearing it: it has magical effects such as improving eyesight, refreshing, practical, nourishing internal organs, lowering blood pressure, etc. This is why natural crystal necklaces are very popular with consumers.

At present, fake natural crystal necklaces have been found in the market, which poses a problem for consumers to choose and purchase. So how can we identify the real andfake natural crystal necklaces without instruments? >

First of all, from an intuitive point of view, a real natural crystal necklace is crystal clear and shiny, with a soft luster. It touches the skin and gives people a cool feeling. . Even on hot summer days, licking the surface of natural crystal jewelry with your tongue will give you a cold and refreshing feeling. Fake crystal jewelry has a lighter cool feeling

Secondly, from an optical point of view, a real natural crystal necklace has a positive optical rotation on one axis and can emit a colorful glow when It is placed vertically in the sun, regardless of the angle. you look at it, it can radiate a beautiful shine, but the fake ones can't.

Third, from a physical and chemical point of view, the hardness, density and refractive index of real crystal necklaces are very different from those of fake crystal necklaces. LThe real one is heavier, the false one is lighter. The real crystal necklace has a hardness of 7.00 and a refractive index of 1.54; while the fake one has a hardness of only 5.2 to 6.10 and a refractive index less than 1.00. Natural crystal has high hardness. Use gravel to lightly scratch the jewelry without leaving any marks, this is fake crystal jewelry.

Fourth, from the perspective of purity, natural crystals are often affected by the environment during the formation process and always contain impurities. Some exhibit varying degrees of color defects and inconsistencies when viewed against the light. you may see thin, uniform horizontal stripes or kitten-like substances. Fake crystal is mainly made from low-grade crystal slag and glass slag, and is imitated after polishing, coloring and irregularities. Uniform scratches, ssubstance similar to a kitten.

Fifth, a real natural crystal necklace appears to have a thin layer of oil on its surface, giving it a cyan color. It's not fake, it's white like glass

Question 8: How do you know if a crystal is authentic or fake? Crystals on the market are available at different prices, ranging from a few yuan to several thousand yuan. Of course, there are real crystals and fake crystals. So how can consumers identify the authenticity of crystals when purchasing them? I tell you below. Five tips for identifying real and fake crystals. Natural crystal is one to two times more expensive than synthetic crystal.

Natural crystals are cool to the touch, while synthetic crystals and cultured crystals are warm to the touch. There are very few natural crystals that are green in color, which is why most crystals verts on the market are synthetic. The hardness of natural crystal is 7, while that of glass is only 5. Therefore, when testing, any object with a hardness greater than 5 may scratch the glass. Crystals with inner wrapping are generally not fake, because forging such items is very expensive and labor-intensive, and the effect is easy to see.

Question 9: How to distinguish real and fake crystals? What is the general price of real crystals? There are the following methods to distinguish real and fake crystals:

Method 1: < /p>

A. Temperature: Under normal circumstances, the temperature of natural crystal is lower than that of its petrified precious stone. It will be slightly cool to the touch with your palm or cheek.

B. Weight: Natural crystal is a stone-like material and its weight is not too light. When purchasing the crystal, first put it onyour hand to weigh the weight. If you find the weight to be relatively light, there's a good chance. whether it is a fake crystal made of glass or plastic.

C. Refraction: Natural crystals are birefringent. Place a black line on a white cloth or paper, place a crystal on it and look through the crystal. The black line will be refracted into two balanced or overlapping black lines. If you can't see birefringence, chances are it's visible. East. Faux crystal glass.

D. Energy: Real crystals can emit energy. When purchasing a crystal pendant, pick it up in one hand with the tip of the column facing the palm of the other hand. When the distance is 2-3cm, slowly rotate it clockwise from left to right. right. You can feel it in the palm of your hand. The energy emitted from the crystal pillar spreads into the palm, and thefeeling is very obvious.

E. Inclusions: All natural crystals have inclusions (i.e. minerals or bubbles) which vary depending on the type and size of the inclusions. These packages are more or less. This can already be seen with the naked eye. If it is crystal clear and its interior contents are not visible, it may be a fake glass crystal. If it is a natural crystal, it must be identified with appropriate instruments. If the crystal is extremely clear, it must have inclusions.

Method 2:

A. View: During the formation process of natural crystal, it is often affected by the environment and contains certain impurities. When viewed against the light, you may see clear, uniform, thin horizontal stripes or catkin-like substances. Fake crystals are mostly made of defective crystals. Crystal and glass slag are polished, dyed and spun, itsNo uniform stripes or kitten-like substance.

B. Tongue licking: Even on hot summer days, licking the surface of the natural crystal with your tongue will give you a cool and refreshing feeling. This is not the case with fake crystals.

C. Lighting: When the natural crystal is placed vertically under the sun, it will emit a beautiful shine no matter what angle you view it from. Fake crystals cannot.

D. Hardness: Natural crystal has high hardness. Use gravel to lightly scratch the jewelry without leaving any marks, this is fake crystal.

E. Check with a polarizer: rotate 360 ​​degrees under the polarizer If there is a change in light or darkness, it is a natural crystal, and if there is no change, it is fake crystal.

F. Dichroism: Natural amethyst has dichroism. This is not the case with fake crystals.

G. Inspection at themagnifying glass: Use ten times magnifying glass to inspect under transmitted light. If bubbles can be found, they can basically be classified as fake crystal.

H. Hair Strand Inspection: Place the crystal on a strand of hair. If the human eye can see the double shadow of hair through the crystal, it is a natural crystal, mainly because the crystal has birefringence.

I. Thermal conductivity meter inspection: Adjust the thermal conductivity meter to the four-grid green test gem. Natural crystal can reach **two grids, while fake crystal does not reach **one. grid.

Counterfeit crystal products that have existed in the past are as follows:

A: Acrylic and plastic products are distinguished by touch, temperature and hardness of the hand. In addition, acrylic and plastic products easily cause distortion and rbreakage of light, and are generally not difficult to distinguish, so these counterfeit products are rare.

B: Glass products, as clear as water at first glance, have no texture, low hardness, single refractive index, and are easy to distinguish if mixed to bubbles.

C: Crystal fusion, mainland products are like glass, but most of them have been made into balls from seven or eight centimeters to ten centimeters. They are very beautiful and beautiful, but have only one refraction. index and low hardness. Use a polarizer or measure if the hair becomes two strands.

D: Crystal glass is actually leaded glass. Fused glass products with lead and gold tail are the most popular on the market. Due to its good refractive index and dispersion rate, it looks dazzling and eye-catching. and is best suited for furnishing and decoratingdecoration, but not suitable for spiritual purposes. Generally, visual judgment can be used.

E: Artificial crystal is also called cultured crystal. The original stone does not contain cubic crystals. However, whether it is ground into a finished product is difficult to judge. by the above method, you need to use "ultraviolet spectrometer" to distinguish real from fake. ...>>