Common Minerals
Minerals and their chemical formulas, colors, and Mohs hardness ratings.
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| ID | Mineral name | Formula | Hardness mohs | Color |
|---|---|---|---|---|
| 1 | Talc | Mg3Si4O10(OH)2 | 1 | White to green |
| 2 | Graphite | C | 1 to 2 | Gray to black |
| 3 | Gypsum | CaSO4.2H2O | 2 | White |
| 4 | Halite | NaCl | 2 to 2.5 | Colorless to white |
| 5 | Sulfur | S | 1.5 to 2.5 | Yellow |
| 6 | Kaolinite | Al2Si2O5(OH)4 | 2 to 2.5 | White |
| 7 | Muscovite | KAl2(AlSi3O10)(OH)2 | 2 to 2.5 | Colorless to silver |
| 8 | Biotite | K(Mg,Fe)3AlSi3O10(OH)2 | 2.5 to 3 | Black to brown |
| 9 | Galena | PbS | 2.5 | Lead gray |
| 10 | Serpentine | Mg3Si2O5(OH)4 | 2.5 to 4 | Green |
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Scope and sources
Last changed: July 19, 2026. This may reflect a change to the data or its description; it is not a coverage-through date.
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