Nephrite
Nephrite is a gemstone with the chemical formula Ca2(Mg, Fe)5Si8O22(OH)2. It has a Mohs hardness of 6-6.5 and greasy to vitreous luster.
Nephrite properties
| Type | Gemstone |
|---|---|
| Chemical formula | Ca2(Mg, Fe)5Si8O22(OH)2 |
| Mohs hardness | 6-6.5 |
| Luster | Greasy to vitreous |
| Typical colors | Dark green, light green, yellow-green |
| Formation | Metamorphic environments, specifically from the alteration of ultramafic rocks |
| Rarity | 5 / 10 |
Mohs hardness 6–6.5 — fairly hard
1 · Talc5 · Apatite10 · Diamond

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