Difference between revisions of "Hematite structure"
From apm
(added group name to intro) |
(added link to page * Simple crystal structures of especial interest) |
||
| Line 24: | Line 24: | ||
* Sb<sub>2</sub>O<sub>3</sub> [https://en.wikipedia.org/wiki/Valentinite valentinite] - 5.76g/ccm - Mohs 2.5 to 3 | * Sb<sub>2</sub>O<sub>3</sub> [https://en.wikipedia.org/wiki/Valentinite valentinite] - 5.76g/ccm - Mohs 2.5 to 3 | ||
| + | = Related = | ||
| + | |||
| + | * [[Simple crystal structures of especial interest]] | ||
| + | |||
= External links = | = External links = | ||
Revision as of 13:33, 24 April 2021
Also: Hematite group / Corundum group.
It's a slightly nontrivial hexagonal crystal structure.
Contents
Highly abundant elements
- Al2O3 Aluminium(III)_oxide - leukosapphire - (Sapphire and Ruby are colored variants) - 2,072°C - 3.987g/ccm - Mohs 9 (defining compound)
- Ti2O3 Titanium(III)_oxide - tristarite - 2,130°C (decomposes) - 4.49g/ccm - metallic luster - semiconducting to metallic at 200°C - Mohs 8.5
- Fe2O3 iron(III)_oxide Hematite - 5.3g/ccm - Mohs 5.5 to 6.5
More rare elements
- Cr2O3 eskolaite - 5.18g/ccm - Mohs 8 - metallic
- V2O3 karelianite (webmineral) - Mohs 8 to 9 - metallic luster
- Mn2O3 manganese-bixbyte - 4.95g/ccm - Mohs 6 to 6.5
Way too rare elements
- Sb2O3 antimony_trioxide senarmontite
- Sc2O3 kangite
- Y2O3 Yttriaite-(Y)
- Bi2O3 bismite bismuth(III)_oxide -- not the monoclinic one
- Tl2O3 avicennite - 8.9g/ccm - Mohs 2
- Sb2O3 valentinite - 5.76g/ccm - Mohs 2.5 to 3
Related
External links
- Wikipediacategory: hematite group aka corundum group
Corundum structure in 3D:
