Fluorite
JewelryWiki Editorial·2 sources·Reviewed 2026-07-31

Defines point 4 on the Mohs scale, with perfect cleavage in four directions — a collector's stone rather than a jewellery one.
Properties
| Property | Value | Authority |
|---|---|---|
| Refractive index | 1.434 [1] | — |
| Specific gravity | 3.00–3.25 [1] | — |
| Crystal system | Cubic [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)