| Mineral | Erionite-K |
|---|---|
| Formula | (K2,Ca,Na2)2[Al4Si14O36] • 15(H2O) |
| Crystal Form | Hexagonal/Dihexagonal Dipyramidal [6/m 2/m 2/m] |
| Cleavage | [010] Distinct |
| Color | White, Green, Gray, Orange |
| Density | 2.1 – 2.1 g/cm3 |
| Diaphaneity | Transparent to Translucent |
| Fracture | Splintery |
| Hardness | 3.5 - 4.0 |
| Lustre | Vitreous - Silky |
| Streak | White |
| Dana 8 Class | 77.1.2.5a |
| Strunz Class | VIII/J.26-92 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 118 |