What are the methods for identifying red corals? The red coral color is gratifying and the texture is radiant. Red coral is an organic gem that grows in the deep sea of ​​100 to 2000 meters away from humans. It is also listed as one of the four organic gems in the West, together with pearls, amber and enamel. It is also listed as one of the seven treasures in the Eastern Buddhist scriptures. It has been regarded as a rich and auspicious thing since ancient times.
Red coral identification method
1. Identification of natural corals and dyed corals: Dyed corals are usually dyed with red and other colors of white corals with organic dyes. The distinguishing feature is that the dyes are enriched in the cracks, and the internal color depth is shallow and the surface is different. Cotton is dyed with cotton swabs of acetone.
2, the identification of natural corals and imitations : coral replicas are commonly found in dyed marble, red glass, red plastic, "Gilson Coral" made with calcite powder and dye. These imitations do not have the internal structure of natural red corals. They can be distinguished by careful look at the grain; dyed marble granular structure, dyes are enriched in mineral particles, and the test can be done with acetone; red glass can be done very much. Similarly, occasionally see bubbles, from the hardness point of view, the glass is larger than the coral, and does not react with hydrochloric acid; the density of red plastic is generally less than 1.55, heating and taste, and can not react with hydrochloric acid; and the density of Gilson coral is 2.45.
The above introduced the identification method of red coral, I hope the above introduction will help you.
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