Cassiterite vs Magnetite
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| Property | Cassiterite | Magnetite |
|---|---|---|
| 化学式 | SnO2 | Fe3O4 |
| 晶系 | Tetragonal | Cubic (Isometric) |
| 矿物分类 | 04 Oxides and Hydroxides | 04 Oxides and Hydroxides |
| 莫氏硬度 | 6.0-7.0 | 5.5-6.5 |
| 颜色 | Brown, black, reddish-brown, yellow | Black |
| 光泽 | Adamantine | Metallic |
| 条痕色 | White to pale brown | Black |
| 透明度 | Translucent | Opaque |
| 解理 | Poor {100} | None |
| 断口 | Subconchoidal to uneven | Conchoidal to uneven |
Key Differences
- ◆ Cassiterite (SnO2) is the tin ore; magnetite (Fe3O4) is the magnetic iron ore.
- ◆ Cassiterite has a much higher specific gravity (6.8–7.1) than magnetite (5.17–5.18).
- ◆ Cassiterite has adamantine luster; magnetite has metallic luster.
- ◆ Magnetite is strongly magnetic; cassiterite is not.
- ◆ Cassiterite is tetragonal; magnetite is cubic — different crystal habits.