Chemistry:Keystoneite
From HandWiki
| Keystoneite | |
|---|---|
| General | |
| Category | Tellurite minerals |
| Formula (repeating unit) | Mg 0.5Ni2+Fe3+(Te4+O 3) 3 · 4.5H 2O |
| Strunz classification | 4.JM.05 |
| Dana classification | 34.3.2.3 |
| Crystal system | Hexagonal |
| Crystal class | Hexagonal pyramidal (6) |
| Space group | P63 (no. 173) |
| Identification | |
| Color | Golden yellow |
| Adamantine|re|er}} | Adamantine |
| Streak | Pale yellow-green |
| Diaphaneity | Translucent |
| Specific gravity | 4.4 |
| Density | 4.4 g/cm3 |
| References | [1] |
Keystoneite is a naturally occurring tellurite mineral. It was discovered in 1988 at Keystone mine, Colorado, the type locality for which it is named.[1][2] It is the Ni2+ analogue of zemannite.[3][4]
References
- ↑ 1.0 1.1 "Keystoneite". https://www.mindat.org/min-2192.html.
- ↑ "Keystoneite Mineral Data". https://webmineral.com/data/Keystoneite.shtml.
- ↑ Keystoneite, Mineral Data Publishing, https://handbookofmineralogy.org/pdfs/keystoneite.pdf
- ↑ Missen, Owen P.; Back, Malcolm E.; Mills, Stuart J.; Roberts, Andrew C.; LePage, Yvon; Pinch, William W.; Mandarino, Joseph A. (March 1, 2021). "Crystal Chemistry of Zemannite-Type Structures: III. Keystoneite, the Ni2+-Analogue of Zemannite, and Ferrotellurite Discredited" (in en). The Canadian Mineralogist 59 (2): 355–364. doi:10.3749/canmin.2000009. ISSN 1499-1276. https://pubs.geoscienceworld.org/canmin/article/59/2/355/595759/Crystal-Chemistry-of-Zemannite-Type-Structures-III.
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