Copper vs Garnet (Almandine)
| Property | Copper | Garnet (Almandine) |
|---|---|---|
| Formula | Cu | Fe3Al2(SiO4)3 |
| Crystal System | Cubic (Isometric) | Cubic (Isometric) |
| Mineral Class | 01 Native Elements | 09 Silicates |
| Mohs Hardness | 2.5-3.0 | 6.5-7.5 |
| Color | Copper-red, tarnishes to brown/green | Deep red, reddish-brown, black |
| Luster | Metallic | Vitreous |
| Streak | Copper-red | Colorless |
| Transparency | Opaque | Transparent |
| Cleavage | None | None |
| Fracture | Hackly | Conchoidal to uneven |