Scapolite
JewelryWiki Editorial·2 sources·Reviewed 2026-08-04

A mineral series rather than a single species, which is why its properties are quoted as ranges even within one specimen type.
Properties
| Property | Value | Authority |
|---|---|---|
| Mohs hardness | 5½–6 [1] | — |
| Refractive index | 1.540–1.579 [1] | — |
| Specific gravity | 2.57–2.74 [1] | — |
| Crystal system | Tetragonal [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)