Difference between revisions of "Pyrite structure"
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| − | A lightly nontrivial cubic structure. <br> | + | A lightly nontrivial '''cubic''' structure. <br> |
Seems none of these are are very hard, <br> | Seems none of these are are very hard, <br> | ||
but the harder ones with common elements are are not "uselessly" weak and soft for structural applications either. | but the harder ones with common elements are are not "uselessly" weak and soft for structural applications either. | ||
Latest revision as of 11:45, 28 June 2021
A lightly nontrivial cubic structure.
Seems none of these are are very hard,
but the harder ones with common elements are are not "uselessly" weak and soft for structural applications either.
- FeS2 Pyrite - 5.0g/ccm - Mohs 6 to 6.5 - optically metallic, electrically conductive, mechanically nonmetallic
- NiS2 Vaesite - Mohs 4.5 to 5.5 (6.25?) - optically not metallic not transparent
- MnS2 Hauerite - 3.46g/ccm - Mohs 4 - optically not metallic not transparent
- CuS2 Villamanínite (copper_sulfide) - 4.5g/ccm - Mohs 4.75 - maybe optically metallic?
- CoS2 Cattiereite - 4.82g/ccm - Mohs 4 - optically metallic
