metamorphic
Nephrite Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, greenish to greyish color, vitreous to greasy luster, and a dense microcrystalline fibrous structure with indistinct cleavage.
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Physical properties
Hardness of 6 on the Mohs scale, greenish to greyish color, vitreous to greasy luster, and a dense microcrystalline fibrous structure with indistinct cleavage.
Formation & geological history
Formed through regional metamorphism at convergent plate boundaries where hydrothermal fluids alter serpentinite or dolomitic limestone.
Uses & applications
Used extensively for high-end carving, ornaments, traditional jewelry, and historical weaponry due to its extreme toughness.
Geological facts
Nephrite was historically prized more than diamond in ancient China for ritual objects and imperial weaponry.
Field identification & locations
Identify in the field by its high toughness, lack of visible crystal faces, and waxy luster; commonly found in China, New Zealand, and western Canada.
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