Cassiterite vs Gypsum
| Property | Cassiterite | Gypsum |
|---|---|---|
| Formula | SnO2 | CaSO4 · 2H2O |
| Crystal System | Tetragonal | Monoclinic |
| Mineral Class | 04 Oxides and Hydroxides | 07 Sulfates, Chromates, Molybdates, and Tungstates |
| Mohs Hardness | 6.0-7.0 | 1.5-2.0 |
| Color | Brown, black, reddish-brown, yellow | Colorless, white, gray, yellow, brown |
| Luster | Adamantine | Vitreous |
| Streak | White to pale brown | White |
| Transparency | Translucent | Transparent |
| Cleavage | Poor {100} | Perfect {010} |
| Fracture | Subconchoidal to uneven | Conchoidal |