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| Mica | Emery | Quartz | Pyrite | Sulphur/Sulfur |
| Chalk | Graphite | Dolomite | Magnesite | Asbestos/Asbestus |
| Calcium | Borate | Cryolite | Feldspar | Leucite |
| Nephelite | Steatite | Talc | Diamonds | Garnets |
| Silicon carbide | Activated carbon | Mulite | Silica | |
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