information on coral

Simulants and Synthetics Of Coral


Coral is extensively imitated and by many materials. What is probably the most attractive counterfeit of coral is a suitably stained vegetable ivory, but this may be identified by the dot like cell structure seen when the surface is examined by a lens. Mixtures of rubber and gypsum powdered marble mixed with glass and coloured […]

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Treatments Done On Coral


Dyeing has been used to produce the desire Ox-blood (dark-red) and angel skin (pink without any trace or orange) colours from colourless of pale coloured Corallium and Occulinacea coral. The colour may be applied only in se­lected areas and may be stable or may fade. Bleaching with 30 percent hydrogen peroxide solution for 12 to […]

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Information on Blue and Black Coral

blue coral

                                                              BLUE CORAL This material, unusual in appearance and colour and of limited use, is obtained from the skeleton of Heliopera coerulea, a type of coral which lives mainly in the seas around the Philippines. APPEARANCE The most striking characteristic of blue coral is its colour, which is bright blue or gray blue, sometimes with […]

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Information on Pink and White Corals


Not often seen on the market a few decades ago, pink coral is now widely available; large quantities of it come from the Orient.         The Mediterranean type (a special variety of the more common red coral) is very compact and, like red coral, takes a good polish, with barely visible organic […]

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Information on Corals


Coral can be described as the collective skeletons of a vast number of the curious little organisms known as Coral Polyps. These begin life as tiny free-swimming very primi­tive organisms living in the warm waters of the sea at depths of 10-500 feet or so. These eventually attach themselves to a previous coralline growth where […]

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