Calcite vs Hematite
| Property | Calcite | Hematite |
|---|---|---|
| Formula | CaCO3 | Fe2O3 |
| Crystal System | Trigonal | Trigonal |
| Mineral Class | 05 Carbonates and Nitrates | 04 Oxides and Hydroxides |
| Mohs Hardness | 3.0 | 5.0-6.5 |
| Color | Colorless, white, yellow, orange, blue, green | Steel-gray to black, red-brown |
| Luster | Vitreous | Metallic |
| Streak | White | Reddish-brown |
| Transparency | Transparent | Opaque |
| Cleavage | Perfect rhombohedral {1011} | None |
| Fracture | Conchoidal | Conchoidal to uneven |