The biggest feature of synthetic crystals is the presence of a daughter crystal nucleus. Synthetic crystals are better judged if they have nucleation, because the nucleus is generally a colorless long plate column, which is clear with the surrounding synthetic grain boundaries.
Recently, some colorless synthetic crystals on the market, because the crystal nucleus and synthetic crystal are colorless, combined with some natural inclusion characteristics in the nucleus or some bubbles between the crystal nucleus and the synthetic crystal, make some unexperienced People are easily mistaken for natural crystals. Some of the bubbles are braided and the heads are arranged outward toward the wall. Natural crystals often have clusters that are arranged along one surface, but this surface is often single and undulating, and the inclusions that make up the surface will be mostly two-phase inclusions under a gem microscope. Not just bubbles.
The second characteristic of synthetic crystals, especially colored synthetic crystals, is uniform color. The whole necklace is uniform in color, especially the yellow crystal series and the synthetic crystal of brown and black. The natural yellow and brown, black crystal colors are often not uniform. Natural crystal is not only uneven in color, but also often in tea color (except for brown crystal). What is more interesting is that under the incandescent lamp at night, the tea yellow crystal does not have a little yellow color. It is completely like a tin crystal. If it is mixed with tea crystal, it is not good. identify.
The third characteristic of synthetic crystals is that they are clean and flawless. Natural crystals often have inclusions and cotton, while synthetic crystals are crystal clear. Individual synthetic crystals have bubbles or some solid impurities. Some synthetic crystals often have some triangular long tubular pores in which there are green or red powders. The long tubes are characterized by being arranged in parallel in one direction and having a triangular cross section. There are often uneven green or red powders distributed along the wall, and the middle is often empty.
The true natural hair crystal is a crystal containing minerals such as tourmaline, actinolite, rutile, etc. These minerals each have their crystal form, such as the "bamboo-like" form of the actinolite. They are wrapped in crystals, arranged in a non-directional manner, thick and slender, and often accompanied by inclusions and cotton inherent in natural crystal.
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