Aragonite vs Quartz
| Property | Aragonite | Quartz |
|---|---|---|
| Formula | CaCO3 | SiO2 |
| Crystal System | Orthorhombic | Trigonal |
| Mineral Class | 05 Carbonates and Nitrates | 09 Silicates |
| Mohs Hardness | 3.5-4.0 | 7.0 |
| Color | Colorless, white, yellow, blue, green | Colorless, white, purple, pink, brown, black |
| Luster | Vitreous | Vitreous |
| Streak | White | White |
| Transparency | Transparent | Transparent |
| Cleavage | Poor {010} | None |
| Fracture | Subconchoidal | Conchoidal |