gemstone
Red Coral
Corallium rubrum
AI-generated identification · may be incorrectHardness of 3.5 on the Mohs scale, deep red to pinkish-orange color, vitreous to dull luster, and amorphous crystal structure with organic composition.
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Physical properties
Hardness of 3.5 on the Mohs scale, deep red to pinkish-orange color, vitreous to dull luster, and amorphous crystal structure with organic composition.
Formation & geological history
Formed by marine colonial polyps (anthozoans) in deep-sea environments, typically taking centuries to grow into branching structures.
Uses & applications
Extensively used in high-end jewelry making, carvings, and traditional amulets.
Geological facts
Precious coral has been harvested for thousands of years and was highly valued in ancient civilizations for trade and ornamentation.
Field identification & locations
Identified by its organic origin, characteristic warm red hue, and natural branching growth patterns or drilled bead shapes.
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