文档介绍：辨别真假珊瑚
True and false coral articles are very large, generally include these points:
Bai Shanhu dyeing: commonly knownrowth structure on the shell and its pink zonation. Other distinguishing features of coral are small, shallow, circular pits, the site of individual coral polyps. Small craters created by certain marine organisms can also exist.
The main substitute is imitation coral celluloid, wood and wax, which has a unique appearance with coral. A celluloid camphor smell when heated, wood can be broken fingernail scraping, exposure to man-made under the surface of wood structure, wax flow was glassy appearance under a magnifying glass. If necessary, these substitutes can be identified with hydrochloric acid, since none of them will work with hydrochloric acid. Conversely, coral, shellfish, pearl and shellfish shells react with hydrochloric acid.
There are many ways to imitate corals, mainly in the following ways:
One is the sea of bamboo, Liu imitation made of coral jewelry. The imitations have distinct longitudinal textures, uniform colors, and no distinctive coral pores.
Two is filled with coral staining. The loose texture of shallow water coral dendrimers by the glue injecting way of filling stain, posing as coral. The imitations are smooth, rough, brittle, and easy to change. They are easy to identify. Program: -injection - filled shallow reef appearance 一 all cora