| Mineral | Magnesioriebeckite |
|---|---|
| Formula | Na2(Mg,Fe2+)3Fe3+2(Si8O22)(OH)2 |
| Crystal Form | Monoclinic/Prismatic [2/m] |
| Cleavage | [110] Perfect |
| Color | Light blue, Dark blue, Black |
| Density | 3.1 – 3.3 g/cm3 |
| Diaphaneity | Translucent to Subopaque |
| Fracture | Brittle - Uneven |
| Hardness | 5.0 |
| Lustre | Vitreous - Silky |
| Streak | Blue-gray |
| Dana 8 Class | 66.1.3c.4 |
| Strunz Class | VIII/F.08-40 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 165 |