Calcite vs Corundum
| Property | Calcite | Corundum |
|---|---|---|
| Formül | CaCO3 | Al2O3 |
| Kristal Sistemi | Trigonal | Trigonal |
| Mineral Sınıfı | 05 Carbonates and Nitrates | 04 Oxides and Hydroxides |
| Mohs Sertliği | 3.0 | 9.0 |
| Renk | Colorless, white, yellow, orange, blue, green | Red (ruby), blue (sapphire), various colors |
| Parlaklık | Vitreous | Adamantine |
| Çizgi Rengi | White | Colorless |
| Şeffaflık | Transparent | Transparent |
| Dilimlenme | Perfect rhombohedral {1011} | None |
| Kırılma | Conchoidal | Conchoidal to uneven |