Pyrite structure: Difference between revisions
Jump to navigation
Jump to search
fixed error in formulas |
m →Related |
||
| (One intermediate revision by the same user not shown) | |||
| Line 1: | Line 1: | ||
{{stub}} | {{stub}} | ||
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. | ||
| Line 15: | Line 15: | ||
* [[Simple crystal structures of especial interest]] | * [[Simple crystal structures of especial interest]] | ||
* [[Pyrite]] | |||
Latest revision as of 17:54, 22 June 2026
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