Quartz vs Topaz
| Property | Quartz | Topaz |
|---|---|---|
| Formula | SiO2 | Al2SiO4(F,OH)2 |
| Crystal System | Trigonal | Orthorhombic |
| Mineral Class | 09 Silicates | 09 Silicates |
| Mohs Hardness | 7.0 | 8.0 |
| Color | Colorless, white, purple, pink, brown, black | Colorless, yellow, blue, pink, orange |
| Luster | Vitreous | Vitreous |
| Streak | White | Colorless |
| Transparency | Transparent | Transparent |
| Cleavage | None | Perfect {001} |
| Fracture | Conchoidal | Conchoidal to uneven |