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Artificial crystal and natural crystal identification method
Mar 01, 2018

Artificial crystal and natural crystal identification method:

① see: natural crystal in the formation process, often affected by the environment will always have some impurities, facing the sun observed, you can see the light uniform fine stripes or catkins-like material. The fake crystal and more use of residual crystal residue, glass slag melting, after polishing processing, coloring imitation made, there is no uniform stripes, cathartic material.

② tongue licking: Even in the hot summer days, licking the natural crystal surface with the tongue, but also cold and cool feeling. Fake crystal, no cool feeling.

③ light: natural crystal vertical placed in the sun, no matter from which point of view it can give off beautiful luster. Fake crystal can not.

④ hardness: natural crystal hardness, with rubble on the jewelry gently stroked, will not leave traces; if there are stripes, it is fake crystal.

⑤ inspection with polarizers: 360 degrees in the polarizer rotation Sings four dark changes are natural crystal, there is no change is fake crystal.

⑥ check with two colors: natural amethyst has dichroism, fake crystal no dichroism.

⑦ with a magnifying glass to check: with a magnifying glass ten times in the transmission of light to check, can find bubbles basically can be set as fake crystal.

⑧ check with the hair: the crystal on a hair wire, the human eye can see through the crystal double shadow hair, then the natural crystal, mainly because the crystal has a birefringence.

⑨ with the thermal conductivity meter test: the thermal conductivity meter adjusted to the green 4 test gem, natural crystal can rise to two yellow, while the fake crystal does not rise, when the area is large rose to a yellow grid.

In general, the sooner the perfume bottle is produced, the more it is collectible and appreciated, as is the case with all collectibles. Such as the Rally-style glass perfume bottle (1st century BC), which was quite extravagant at the time, just like the liquid in the bottle. Another example is the blown amethyst bottles (AD 50 to 150 years), as well as the first century AD mold blown glass cans and so on. From them, we can understand the real "lasting fragrance."

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