Cassiterite vs Corundum
| Property | Cassiterite | Corundum |
|---|---|---|
| Formel | SnO2 | Al2O3 |
| Kristallsystem | Tetragonal | Trigonal |
| Mineralklasse | 04 Oxides and Hydroxides | 04 Oxides and Hydroxides |
| Mohshärte | 6.0-7.0 | 9.0 |
| Farbe | Brown, black, reddish-brown, yellow | Red (ruby), blue (sapphire), various colors |
| Glanz | Adamantine | Adamantine |
| Strichfarbe | White to pale brown | Colorless |
| Transparenz | Translucent | Transparent |
| Spaltbarkeit | Poor {100} | None |
| Bruch | Subconchoidal to uneven | Conchoidal to uneven |