CORAL
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Coral is made up of the skeletal remains of marine animals called coral polyps. These tiny creatures live in colonies which form branching structures as they grow, eventually forming coral reefs and atolls. The surface of these coral "branches" has a distinctive patterning made by the original skeleton - either striped or like wood grain. Most corals - red, pink, white, and blue varieties - are made of calcium carbonate; black and golden corals are made of a horn-like substance called conchiolin. Red coral is the most valuable, and has been used in jewellery for thousands of years. Hardness: 3 AGATISED CORAL
Agatized coral occurs when silica in the ocean water hardens, replacing the limy corals with a form of quartz mineral known as chalcedony. This long fossilization process (20–30 million years) results in the formation of a "pseudomorph," meaning that one mineral has replaced another without having lost its original form. | ||
From the Aberdeen Bestiary Project Coral grows like a tree in the sea, at which time it is green; afterwards, however, it hardens and takes on a reddish colour. It resembles the branch of a tree. Its virtue is that it drives away lightning and storms, wherever it is; and if it is scattered around a vineyard or olive-grove, or on a field or on seeded ground, it protects it from hail and storms and it increases its yield. It banishes apparitions and brings a good outcome to legal business. |