In Feng Shui, crystal is also known as Feng Shui. Because natural crystals condense hundreds of millions of years of aura, there are more people who buy crystals as ornaments and ornaments. How to choose high-quality crystal? The evaluation criteria of crystal are different from high-end gems. Most high-end gemstones put color in the first place of evaluation, while for crystal, color and clarity (called crystal in the crystal industry) are almost equally important factors.
1, color: For any gem, color is very important, crystal is no exception. If the crystal crystal is colored, such as powder crystal, citrine, amethyst, etc., the highest standard of color evaluation is bright and moving, without gray, black, brown and other colors. Such as pink crystal, the color is better with pink; amethyst, the color is required to be fresh purple, pure and not black; citrine, the color is not green, lemon color, preferably gold orange. For hair crystals, the color of the crystal is also important. The same hair of the blonde crystal, the crystal is completely colorless (white crystal) and the crystal is slightly brown, the visual perception of the naked eye is also different, so the price of the former will be higher than the latter.
2. Clarity: The clarity requirements of crystal and high-grade gemstones are very different. High-grade gemstones are rare and rare, so it is generally not too demanding for the purity of high-grade gemstones. The output of crystal is really amazing, so people usually ask for the higher the clarity of the crystal, and try to avoid crystals with more obvious inclusions.
3, impurities: If there are legendary characters in the crystal internal impurities, such as Buddha, constellation, zodiac and other values ​​may be higher than the same color and clarity of the crystal.
The difference between natural crystal and artificial crystal
(1) The color distribution of natural purple crystal is uneven, irregular sheet-like distribution, gas-liquid inclusion body; synthetic purple crystal color is uniform, and the center has a crystal nucleus.
(2) Natural crystals are also available in colors such as citrine and smoky quartz. If it is blue-orange, it is artificially colored. The difference between the color-changing crystal and the natural crystal is that the color of the color-changing crystal is bright and uniform, and irregular irregular swatches are not seen. Artificially colored crystal prints will fade slowly after a long period of use, losing their decoration and appreciation.
(3) Looking at the sun, natural crystal jewelry can be seen in any way, even with fine horizontal stripes or catkin-like texture, while fake crystal jewelry is usually regenerated with residual crystal slag or glass smelting, and polished. Coloring and counterfeiting, no uniform stripes and catkins are seen against the sun.
(4) In the sun, natural crystal jewelry can radiate beautiful brilliance from any angle, while fake water jewelry does not have such brilliance.
(5) The refractive index of natural crystal is 1.54; the refractive index of pseudo-crystal is generally less than 1, or is far from the refractive index of natural crystal. Crystal is an excellent quartz crystal, most of which is colorless and transparent, and a small amount of different colors due to various trace elements. It is transparent, high in hardness and good in refraction. Necklaces and glasses made of high-quality natural crystals have become high-end decorations and practical products for beautifying life and rickets.
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