PUKHRAJ-001
Coral is a product of the sea. It is formed from the calcareous skeletons of myriads of tiny polyps (which means insect with many feet) which live in vast colonies in warm waters at a moderate depth. It is composed chiefly of calcium carbonate. This is arranged as fibers radiating from the central axis of the curving coral branches. Its specific Gravity is 2.68 and hardness is less than 4 on the Moh’s scale. It is an opaque stone. Many forms of coral exist, but only high-quality Red, Pink, Blue, Black and white corals are used in jewelry.
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