Jadeite
JewelryWiki Editorial·2 sources·Reviewed 2026-07-31
One of the two minerals sold as jade. Moderate hardness but exceptional toughness from its interlocking crystal structure — the classic case of the two axes diverging.
Properties
| Property | Value | Authority |
|---|---|---|
| Mohs hardness | 6½–7 [1] | — |
| Refractive index | 1.652–1.688 [1] | — |
| Specific gravity | 3.30–3.38 [1] | — |
| Crystal system | Monoclinic [2] | — |
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)