Nephrite
JewelryWiki Editorial·2 sources·Reviewed 2026-07-31
The other jade. Softer than jadeite and generally less valuable, but similarly tough.
Properties
| Property | Value | Authority |
|---|---|---|
| Mohs hardness | 6–6½ [1] | — |
| Refractive index | 1.600–1.627 [1] | — |
| Specific gravity | 2.90–3.03 [1] | — |
| Crystal system | Monoclinic [2] Read from the species article, Actinolite. | — |
Sources
- International Gem Society — reference charts (Mohs hardness, specific gravity, refractive index) — International Gem Society (IGS reference charts)
- Wikipedia — mineral article infoboxes (crystal system) — Wikipedia contributors (Wikipedia mineral infoboxes)