Chalcedony identification method

The yield of chalcedony is higher and the price is lower. There are very few fakes and fakes on the market. However, the price of the natural chalcedony is very high, so some black-hearted merchants have processed the chalcedony to pretend to be the natural chalcedony. The following describes the method of identification of chalcedony.


How to identify chalcedony staining

Chalcedony is often dyed.

The dyeing treatment can dye the chalcedony into green and blue. The detection characteristics of the dyed chalcedony used to model the natural green chalcedony are: two to three fine chromium absorption lines appear at the red end of the spectrum, under the Charles filter. It has a reddish tint and a slightly lower density than the ochre green chalcedony colored with nickel oxide. Natural blue green chalcedony is less common.

Treatment with sugar and acid can produce black chalcedony, often called black onyx, which works well because the dye is evenly distributed into the cryptocrystalline components of the chalcedony.

How to identify the true and false of chalcedony

The formation of chalcedony is relatively difficult. It is generally known to occur in the sediments of hot springs and in the cavities of eruptive rocks, and it also requires a long-term objective environment of low temperature and low pressure. The conditions for formation are very harsh. Just look at its stalactite-like appearance and the fascinating colors filled with the spooky colors to imagine its rarity and preciousness.

After the chalcedony is processed, it is more dazzling. Whether it is green chalcedony, purple chalcedony, and chalcedony, it is so crystal clear, especially the chalcedony halo and the color distribution are more uniform after high temperature treatment. . It seems as if a drop of crystal water containing natural colors is in front of you.

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