treated coral

Treatments Done On Coral

treated-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 se¬≠lected areas and may be stable or may fade. Bleaching with 30 percent hydrogen peroxide solution for 12 to […]

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