Pyrite vs Quartz
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| Property | Pyrite | Quartz |
|---|---|---|
| Formula | FeS2 | SiO2 |
| Crystal System | Cubic (Isometric) | Trigonal |
| Mineral Class | 02 Sulfides and Sulfosalts | 09 Silicates |
| Mohs Hardness | 6.0-6.5 | 7.0 |
| Color | Pale brass-yellow | Colorless, white, purple, pink, brown, black |
| Luster | Metallic | Vitreous |
| Streak | Greenish-black to brownish-black | White |
| Transparency | Opaque | Transparent |
| Cleavage | Indistinct | None |
| Fracture | Conchoidal to uneven | Conchoidal |