Chinese
Name:黑珊瑚
English Name:Black Coral
Chemical Composition:Conchiolin (Mainly from horny organic)
Crystal System:Amorphous, Organic Material
Hardness:2.5 - 3.5
SG:1.3 - 2.2
RI:approx 1.56
Related Chakra:Root
Locality:West Indies, off the Hawaiian Islands, Australia and in Southern water towards Antarctica
Colour:Black
Remarks:Coral is secreted by animals called coral polyps.
Coral is the supporting structure for the body of the polyp, which lives in a rigid skeleton or 'cup'.
Some colonial corals build structures known as reefs, which are the accumulated supporting structures of successive generations of polyps.
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