Class V a:Carbonates
From The Gemology Project
| Class Va | Carbonates |
|---|---|
| Aragonite | CaCO3 |
| Azurite | Cu3(OH/CO3)2 |
| Calcite | CaCO3 |
| Cerrussite | PbCO3 |
| Malachite | Cu2(OH)2CO3 |
| Rhodochrosite | MnCO3 |
| Smithsonite | ZnCO3 |
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