Cassiterite vs Corundum
| Property | Cassiterite | Corundum |
|---|---|---|
| 化学式 | SnO2 | Al2O3 |
| 晶系 | Tetragonal | Trigonal |
| 矿物分类 | 04 Oxides and Hydroxides | 04 Oxides and Hydroxides |
| 莫氏硬度 | 6.0-7.0 | 9.0 |
| 颜色 | Brown, black, reddish-brown, yellow | Red (ruby), blue (sapphire), various colors |
| 光泽 | Adamantine | Adamantine |
| 条痕色 | White to pale brown | Colorless |
| 透明度 | Translucent | Transparent |
| 解理 | Poor {100} | None |
| 断口 | Subconchoidal to uneven | Conchoidal to uneven |