Difference between revisions of "Pyrite structure"
From apm
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* Cu<sub>2</sub>S [https://en.wikipedia.org/wiki/Villaman%C3%ADnite Villamanínite] ([https://en.wikipedia.org/wiki/Copper_sulfide copper_sulfide]) - 4.5g/ccm - Mohs 4.75 - maybe optically metallic? | * Cu<sub>2</sub>S [https://en.wikipedia.org/wiki/Villaman%C3%ADnite Villamanínite] ([https://en.wikipedia.org/wiki/Copper_sulfide copper_sulfide]) - 4.5g/ccm - Mohs 4.75 - maybe optically metallic? | ||
* Co<sub>2</sub>S [https://en.wikipedia.org/wiki/Cattierite Cattiereite] - 4.82g/ccm - Mohs 4 - optically metallic | * Co<sub>2</sub>S [https://en.wikipedia.org/wiki/Cattierite Cattiereite] - 4.82g/ccm - Mohs 4 - optically metallic | ||
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| + | == Related == | ||
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| + | * [[Simple crystal structures of especial interest]] | ||
Revision as of 09:37, 25 April 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.
- Fe2S Pyrite - 5.0g/ccm - Mohs 6 to 6.5 - optically metallic, electrically conductive, mechanically nonmetallic
- Ni2S Vaesite - Mohs 4.5 to 5.5 (6.25?) - optically not metallic not transparent
- Mn2S Hauerite - 3.46g/ccm - Mohs 4 - optically not metallic not transparent
- Cu2S Villamanínite (copper_sulfide) - 4.5g/ccm - Mohs 4.75 - maybe optically metallic?
- Co2S Cattiereite - 4.82g/ccm - Mohs 4 - optically metallic
