Mineral | Barrerite |
---|---|
Formula | Na2(Si7Al2)O18 ยท 6H2O |
Crystal Form | Orthorhombic/Dipyramidal [2/m 2/m 2/m] |
Cleavage | Perfect on {010} |
Color | White, Pink |
Density | 2.1 – 2.3 g/cm3 |
Diaphaneity | Transparent, Translucent |
Hardness | 3.0 - 4.0 |
Lustre | Vitreous |
Streak | White |
Type Loc. | Sant' Efisio Tower, Capo di Pula, Pula, Cagliari Prov., Sardinia, Italy |
Dana 8 Class | 77.1.4.5 |
Strunz Class | 9.GE.15 |
Mindat | mindat.org |
WebMineral | WebMineral |
ID | 480 |