metamorphic
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, dark green color, greasy to vitreous luster, and a dense microcrystalline fibrous structure.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, dark green color, greasy to vitreous luster, and a dense microcrystalline fibrous structure.
Formation & geological history
Formed through high-pressure, low-temperature metamorphic alteration of serpentinite or magnesian limestone during intense tectonic activity.
Uses & applications
Extensively used for carving intricate sculptures, ornamental objects, and durable cultural jewelry.
Geological facts
Nephrite is significantly tougher and more fracture-resistant than jadeite due to its interwoven microscopic crystal structure.
Field identification & locations
Identify by its high density, characteristic green hues, and resistance to scratching by steel. Commonly found in alluvial river pebbles and metamorphic belts worldwide.
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