2010年7月31日星期六

Red Coral Gemstone

Coral reefs are found in almost all the oceanic parts of the world. The major deposit of coral is the Great Barrier Reef off the coast of Queensland, Australia. The finest specimens come from Sardinia and Tunisia; the coral from Japan and China is considered slightly inferior in quality but its price is more than Italian red coral because it is found in less quantity.Coral is an Organic Substance. It is not a mined stone or mineral, but an organic gemstone. Formed from a living creature, it is the ;skeleton; formed by individual polyps, plant-like animals, which make up a colony under seawater in deep sea. It is a hard calcareous matter formed of innumerable skeletons continuously secreted by many families of marine coelenterate polyps (a family of zoophytes, gelatinous marine animals called polyps) for their support and habitation. It looks like an underwater colorful plant which keeps growing biologically. It is one of the priceless gifts from the sea for the mankind.Red Italian coral is believed to be the finest quality coral, mostly demanded in the jeweler industry.