| Mineral | Lazurite |
|---|---|
| Formula | Na3Ca(Al3Si3O12)S |
| Crystal Form | Isometric/Hextetrahedral [4 3m] |
| Cleavage | [110] Imperfect |
| Color | Blue, Azure blue, Violet blue, Greenish blue |
| Density | 2.4 – 2.4 g/cm3 |
| Diaphaneity | Translucent |
| Fracture | Conchoidal |
| Hardness | 5.5 |
| Lustre | Vitreous - Dull |
| Streak | Light blue |
| Type Loc. | Ladjuar Medam, Sar-e-Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan |
| Dana 8 Class | 76.2.3.4 |
| Strunz Class | VIII/J.11-40 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 22 |