Amazonite vs Copper
| Property | Amazonite | Copper |
|---|---|---|
| Formula | KAlSi3O8 | Cu |
| Crystal System | Triclinic | Cubic (Isometric) |
| Mineral Class | 09 Silicates | 01 Native Elements |
| Mohs Hardness | 6.0-6.5 | 2.5-3.0 |
| Color | Green, blue-green | Copper-red, tarnishes to brown/green |
| Luster | Vitreous | Metallic |
| Streak | White | Copper-red |
| Transparency | Translucent | Opaque |
| Cleavage | Perfect {001}, good {010} | None |
| Fracture | Conchoidal to uneven | Hackly |