Coral stone is a very precious gemstone which is mainly found in deep waters which is formed in rocky sea beds with a very low level of sedimentation. It is a kind of organic gemstone which is hard in nature and very durable at the same time. White and red corals have a lot of calcium carbonates and also have a specific gravity. The easiest way to find out a real and authentic coral is by checking its translucent and opaque form.
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