The characteristics of artificial crystal

The international standard of lead oxide content is 24%. At this time, the chemical properties of artificial crystal are the best. Compared with ordinary glass, it is mainly due to its large specificity and heavy hand feeling; its high refractive index can transmit colorful colors of the spectrum; its hardness is high, Wear-resistant. The biggest feature of man-made crystals is that they have daughter crystal nuclei. If the man-made crystal has a crystal nucleus, it is better to judge, because the crystal nucleus is generally a colorless long plate columnar shape, and the boundary line with the surrounding synthetic crystals is clear. However, some colorless artificial crystals on the market in 2003, because both the crystal nucleus and the synthetic crystal are colorless, and there are some natural inclusions in the crystal nucleus or some bubbles between the crystal nucleus and the synthetic crystal, make some Inexperienced people can easily mistake it for natural crystals. If you observe carefully, you will find that the inclusions in the crystal nucleus only exist in the sub-nucleus column, and there is a feeling of being cut off by an invisible wall around it. The bubbles between the crystal nucleus and the synthetic crystal are distributed along the crystal nucleus wall, forming "bubble walls" parallel to each other. Some air bubbles are in the shape of tadpoles, with their heads arranged toward the wall and their tails outward. Natural crystals also often have group inclusions arranged along one surface, but this surface is often single and has ups and downs, and the inclusions that make up this surface are mostly two-phase inclusions under a gem microscope, while Not just bubbles. The difference between the two is still obvious.

It is worth noting that in artificial crystals, there are often some dark purple flakes with better orientation, which are easily reminiscent of the characteristics of irregular flake-like chromophores in natural amethyst. The difference between the two is that the deep purple chromophores in the synthetic amethyst are arranged in near-parallel sheets, with little difference in size and shape, and the boundaries are obvious. However, the color group of natural amethyst is random and irregular, the color tone changes in depth, and the boundary line is gradual. If the deep purple flakes in synthetic amethyst are compared to floating "purple cloth flakes", then the purple clusters in natural amethyst can be regarded as floating "purple smoke clusters". This is the main difference between the two.

The third characteristic of man-made crystal is clean and flawless. Among the natural crystals, except for the top natural crystals which are translucent, flawless, bright and clean, ordinary natural crystals often have inclusions and cotton, while artificial crystals are crystal clear. Individual man-made crystals have air bubbles or some solid impurities. There are often some triangular long tubular pores in some man-made crystals, and there are green or red powder in these pores. The characteristic of this kind of long tube is that it is arranged in parallel in one direction, the cross section is triangular, and there are often uneven green or red powders distributed along the wall inside, the middle is often empty, and the end of the long tube tends to become sharper. The real natural hair crystals are crystals containing minerals such as tourmaline, actinolite, rutile, etc. These minerals have their own crystal forms, such as the "bamboo-shaped" form of actinolite. They are wrapped in crystals, randomly arranged without direction, with different names in thickness and length, and are often accompanied by inclusions and cotton inherent in natural crystals. The main difference between natural crystals and man-made crystals is that man-made crystals generally see bubbles under a magnifying glass, while natural crystals do not have bubbles; there is always a trace of impurities in natural crystals, but man-made crystals appear spotless and clean.