Agatized Coral - MD

Item Size: Medium 3/4 - 1" (18-25mm)


SCIENTIFIC DATA

Mineral Class:

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Composition: CaCO₃

Hardness: 3-4

Specific Gravity: 2.6-2.7

Cleavage: None

Fracture: Uneven, splintery

Color: White, pink, red

Streak: White

Luster: Dull or waxy when unpolished; vitreous when polished

Transparency: Opaque

Crystal System: Trigonal

Sources: Coasts of the West Mediterranean, Bay of Biscay, Canary Islands, Malaysian archipelago, Midway Islands, Japan

Corals are the supporting framework of small polyps which precipitate calcareous material in their outer body wall and thus build up reefs, atolls and coral banks with many intertwining branches down to a depth of three hundred meters.


METAPHYSICAL DATA

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