Cang coral bone is an organic gemstone whose chemical composition is calcium carbonate. Its shape is mostly dendritic, and its cross-section has a concentric circular pattern and a heart point. Glass luster to dull gloss, fine texture, uniformity, flat fracture, opaque.
Because of its blue color, Cang coral is a blue coral, which is an extremely rare coral. Soft corals are soft corals because they have a slender water body. The shape has a shape of a branch, a plate, a column, and a cover. The bones are made up of calcium carbonate and metal salts, which give it a strange blue color. However, the polyps are brown or light blue.
Coral coral is the only coral in the world of pecans, and the only coral in the genus of the genus. The bones are mostly in the body, or extend from the body to the body surface. The bones are made up of meteorites, which live in a tube inside the bone and are connected by a thin layer of tissue outside the bone. The skeleton of the group is huge and is the only reef species in the eight-ocean coral.
Cang coral is widely distributed in the Indian Ocean and the Pacific Ocean, and is the dominant species in the coral reefs with strong waves in the South China Sea.
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