Azurite vs Corundum
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| Property | Azurite | Corundum |
|---|---|---|
| Formule | Cu3(CO3)2(OH)2 | Al2O3 |
| Système Cristallin | Monoclinic | Trigonal |
| Classe Minérale | 05 Carbonates and Nitrates | 04 Oxides and Hydroxides |
| Dureté Mohs | 3.5-4.0 | 9.0 |
| Couleur | Azure blue, dark blue | Red (ruby), blue (sapphire), various colors |
| Éclat | Vitreous | Adamantine |
| Trait | Light blue | Colorless |
| Transparence | Transparent | Transparent |
| Clivage | Perfect {011}, fair {100} | None |
| Cassure | Conchoidal | Conchoidal to uneven |