Who knows what artificial crystals are

The composition is basically the same as glass, except that some lead is added, and dyes are added to dye it.

Optimize resources and shout jewelry factories. The company's long-term ** size, heterogeneous, round white zirconium, colored zirconium; Mont cracked stone; secondary stones; kilogram stone, etc.

Artificial crystal, also known as cultivated crystal, is artificially cultivated.

Artificial crystal is made of raw quartz sand.

After a series of process refining, and then through fine cutting technology and flawless polishing work, artificial crystal is pure and transparent, making up for the lack of natural crystal.

The addition of metal elements such as lead to artificial crystals can enhance the dispersal of light, and show the nobility of crystals. Due to the complicated process and superb craftsmanship of artificial crystal, some prices are even more expensive than natural crystal.

Artificial crystals are not natural

Artificial crystal is artificially synthesized by artificial technology to imitate the mineral components of natural crystal crystals, commonly known as "colored glass". **Taller than glass, cheaper than natural crystal. And it does not have the function of natural crystal health care.

Microcrystalline stone is a kind of artificial stone, color, etc., using a specific process, no water absorption, no color difference, no fading, is a new type of high-grade decorative materials, it is made of unsaturated polyester resin as a binder, glass powder and other inorganic powders, mixed with ingredients, its performance is better than natural granite, extrusion and other methods of molding and solidification.

Artificial crystals are high-lead glass, or lead-crystalline glass. That is, by adding 24% lead oxide to ordinary glass (the composition is silicon dioxide), artificial crystals with brightness and transparency similar to natural crystals are obtained.

Even natural crystals without any flaws, such as white crystal, are very cheap, not priceless, Swarovski's crystals are a lot of ** more than natural crystal, because it has the world's leading crystal technology, its production cost is relatively high, things are of course very good, artificial crystal, that is, high lead glass, or called lead crystalline glass, that is, in ordinary glass (the composition is silicon dioxide) to add 24% lead oxide, you will get artificial crystal with brightness and transparency similar to natural crystal. Features The international standard for lead oxide content is 24%, at this time, the chemical properties of artificial crystal are the best, compared with ordinary glass, the main thing is that it is heavy and heavy; The refractive index is large, and it can transmit the colorful colors of the spectrum; High hardness and wear resistance. Uses Lead glass containing 24% lead oxide can be made into high-grade and high-quality lead glass artworks through refining, removing impurities, hand-blowing, grinding and polishing, and fine carving, and the light can be refracted through the carved facets.

One. What is Crystal Crystal is a gemstone belonging to silicate minerals, which is a colorless transparent quartz crystal mineral, and its main chemical component is silica. The crystal crystal with perfect crystallization belongs to the hexagonal crystal system, often in the shape of a hexagonal prism, the cylinder is one or two pointed ends, and a number of long cylinders are connected together, commonly known as the crystal family.

Two. The formation of crystal The growth environment of crystal is mostly underground, in caves, which requires abundant groundwater**, and groundwater contains saturated silica, and the pressure in this is about two to three times the atmospheric pressure, and the temperature needs to be between 550-600, and then given the appropriate time, the crystal will crystallize into a hexagonal columnar crystal according to the natural law of the hexagonal crystal system. Three.

The formation of artificial crystals In an ideal environment controlled by man, that is, the physical and chemical conditions are consistent with the formation of crystals (see II. crystal formation), the growth rate of crystals is about mm per day.

This is also the standard production speed in many laboratories and factories of artificial crystals. The crystals thus cultivated are the so-called "artificial crystals". Four.

Artificial crystal for industrial use and jewelry Generally, the thickness of artificial crystal for industrial use is about three centimeters, that is, 30mm, and it takes about 40 days to grow; For the jewelry industry to grind a crystal ball of more than 10 cm (100 mm), it usually takes about 120-180 days. This is only possible in the most ideal environment under human control.

I won't comment much on the copy-pasting above.

Say what you think.

First of all, I studied jewelry.

Now because the synthesis technology is not very developed, the ** of synthetic crystals is not low. Some synthetic crystals are more expensive than natural ones due to their exquisite craftsmanship.

Now there are more crystal products on the market, and the general celestial crystal is only a few dozen yuan.

Of course, the top grades in the crystal, such as hair crystals and green ghosts, are relatively valuable, and can go up to 4 figures, or even tens of thousands.

The main ways to distinguish between the two are:

Natural crystals appear to be relatively pure and have no internal inclusions, while celestial crystals do.

Although there is not much difference between natural crystal and artificial crystal, it is recommended to bring natural crystal.

One is to observe the material of the crystal. Artificial crystals have a flat, flaky seed crystal nucleus in the center, while natural crystals do not. The second is that artificial crystals occasionally see circular gas-liquid inclusions, which form a structure like honey entering water, and there are also elongated gas-liquid inclusions, which mainly appear at the growth interface of seed crystals.

Natural crystals, on the other hand, often contain gas-liquid inclusions in the form of stars, clouds and flocculents. The third is the solid package in the artificial crystal, in addition to the impurities incorporated by smelting quartz and chemical trial production, there are also the shedding on the wall of the kettle, the microcrystalline particles of quartz and the solid package formed by the shedding of the raw materials of the seed crystal frame; Inclusions in natural crystals are often minerals such as rutile and pyrite. Fourth, natural crystals are cooler to touch, and artificial crystals have a sense of temperature when they touch the human body.

Fifth, there are Dauffen bicrystals, Brazilian bicrystals and Japanese bicrystals in natural crystals, while concave bicrystals, polyhedral bicrystals, bulging bicrystals and flocculent bicrystals exist in artificial crystals. Sixth, there may be defects such as dislocation, corrosion tunnels and production stripes in artificial crystal, which can be distinguished from natural crystal. In addition, artificial crystal materials are often larger than natural crystal blocks, and the crystal shape is also different.

The significant feature of artificial color crystals (such as purple, yellow, green, blue, etc.) is that the color is uniform, sometimes due to the influence of the concentration of colorants, the color is too dark, too light, etc., and there is a feeling of dull color. The hue of natural colored crystals is uneven in depth and light, but the color is softer. Identification by spectra:

Natural and artificial crystals have different light transmittance in the micron wavelength region, and artificial amethyst has an absorption band at the wavelength of 3540 angstroms in the infrared spectrum, while natural amethyst does not. For yellow, green and brown artificial crystals containing iron, the absorption spectrum generally has a strong absorption maximum in the ultraviolet region, while the low-energy tail can extend to the visible region, and such crystals generally do not contain macroscopic double crystals; From the perspective perpendicular to the optical axis, the tunnel structure can be seen by the morphology method parallel to the optical axis. From the perspective of microstructure, artificial citrine growing on the basal seed crystal also has a parallel basal growth structure and growth layer, which is not found in natural citrine, and in artificial citrine, solid inclusions like breadcrumbs can sometimes be seen. With the above identification points mastered, you can choose artificial crystals and natural crystals at will.

Actually, I don't think it's necessary to identify this... Swarovski crystals are not still man-made... Other people cut well, but they still sell expensive.

Natural crystals generally have some flaws, artificial flawless, natural cold, artificial warmth, so the easiest way is to look at the first time, the second experience of the temperature of the crystal, with the tongue to add, the cold is natural, warm is artificial.

Each crystal is distinguished in a different way, and some are not distinguishable to the naked eye at all. It cannot be said that crystals are all ice, some depend on their color, minerals and so on. Specific crystals are analyzed, each with its own merits.

The main difference between artificial crystal and natural crystal is that the hardness is different, the thermal conductivity is different, and the luster is different. The hardness of artificial crystal is around, the thermal conductivity is very slow, and the texture is rough.

1. The appearance of artificial crystal and natural crystal is relatively similar in hardness, but their essential difference lies in the difference in hardness, natural crystal is a collection of a variety of minerals, and its Mohs hardness can reach about it, while the hardness of artificial crystal is about it, in comparison, artificial crystal is easy to break.

2. The thermal conductivity is different at the same time, the thermal conductivity of artificial crystal and natural crystal is also different, natural crystal is a kind of mineral crystal, which gives people a feeling of warm in winter and cool in summer, fast thermal conductivity, and more hand-feel, while artificial crystal is mostly made of glass, thermal conductivity is a little slower, and there is no feel to the touch.

3. The luster is different at the same time, the luster of the two is also different, the naturally formed crystal is relatively rare, the surface is oily or glass luster, with a high gloss, the gelatinous texture and grease are very strong, through the illumination of the light, there will be bright reflection, and the luster of the artificial crystal is not high, it looks relatively mild.