The composition and structure of synthetic crystal and natural crystal are completely the same, especially when the crystal interior is very clean, can not see any characteristics, even laboratory identification has certain difficulties must use large instruments. In this case, it is difficult to distinguish natural crystals from synthetic crystals with the naked eye and portable instruments such as a ten-power magnifying glass. But there is also a less useful method, which is to test the crystal at room temperature until the temperature is stable with your hand to feel how cold it is. Generally speaking, natural crystal is cooler, and synthetic crystal or glass has warm feeling. However, this method is affected by the weather and environment, not applicable in winter. And because individual perception of temperature is different, it is only an auxiliary means of identification.
But the metropolis in most natural crystal exists or more or less contain content, it is the cotton that the expert often says, lock, cloud mist, mineral wrap a body to wait, form green ghost, of all kinds hair the variety such as crystal, send full of vitality. Synthetic crystals are cleaner, but sometimes have some characteristics. If one of the following characteristics appears, it can be determined as a synthetic crystal:
(1) a layer of dust will fall on the glass desktop if you do not wipe it for a period of time, which we must have seen. If you see what looks like "tabletop dust" inside a crystal, that means there are a lot of very fine gray or white dots along one plane or several parallel planes, and the rest of the crystal is very clean. So this is basically a synthetic crystal.
(2) Synthetic crystals sometimes have very thin hollow tubular inclusions. These hollow tubes are also basically parallel, sometimes reaching the surface, or they may be large and small, like nails. This is also only found in synthetic crystals, probably some flux residue from synthesis.
(3) Natural crystals are rarely green, or very rare. Such as green ghost, green hair crystals, and other varieties, the inclusion inside is green, but the crystal itself is colorless transparent. The crystal that appears on the market in great quantities of green transparency so, color is handled basically, and majority itself is synthetic crystal. Glass is cheap imitation, can come in a variety of colors, and sometimes can be made translucent, relatively easy to identify some.
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