Calcite vs Gypsum
| Property | Calcite | Gypsum |
|---|---|---|
| Formule | CaCO3 | CaSO4 · 2H2O |
| Système Cristallin | Trigonal | Monoclinic |
| Classe Minérale | 05 Carbonates and Nitrates | 07 Sulfates, Chromates, Molybdates, and Tungstates |
| Dureté Mohs | 3.0 | 1.5-2.0 |
| Couleur | Colorless, white, yellow, orange, blue, green | Colorless, white, gray, yellow, brown |
| Éclat | Vitreous | Vitreous |
| Trait | White | White |
| Transparence | Transparent | Transparent |
| Clivage | Perfect rhombohedral {1011} | Perfect {010} |
| Cassure | Conchoidal | Conchoidal |