Aragonite vs Beryl (Emerald)
| Property | Aragonite | Beryl (Emerald) |
|---|---|---|
| Formula | CaCO3 | Be3Al2(SiO3)6 |
| Crystal System | Orthorhombic | Hexagonal |
| Mineral Class | 05 Carbonates and Nitrates | 09 Silicates |
| Mohs Hardness | 3.5-4.0 | 7.5-8.0 |
| Color | Colorless, white, yellow, blue, green | Green (emerald), blue (aquamarine), pink (morganite), yellow (heliodor) |
| Luster | Vitreous | Vitreous |
| Streak | White | Colorless |
| Transparency | Transparent | Transparent |
| Cleavage | Poor {010} | Poor {0001} |
| Fracture | Subconchoidal | Conchoidal to uneven |