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| references = <ref name=Mindat>[http://www.mindat.org/min-4319.html Mindat]</ref><ref>[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Wyartite Mineralienatlas]</ref> |
| references = <ref name=Mindat>[http://www.mindat.org/min-4319.html Mindat]</ref><ref>[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Wyartite Mineralienatlas]</ref> |
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'''Wyartite''' {{Chem|CaU|5+|(UO|2|)|2|(CO|3|)O|4|(OH)}}·7H<sub>2</sub>O is a [[uranium]] bearing [[mineral]] named after [[Jean Wyart]] (1902–1992), mineralogist at the [[University of Paris|Sorbonne]], [[Paris]]. It has greenish-black, black, or violet-black, translucent to opaque orthorhombic crystals.<ref name=":0" /> |
'''Wyartite''' {{Chem|CaU|5+|(UO|2|)|2|(CO|3|)O|4|(OH)}}·7H<sub>2</sub>O is a [[uranium]] bearing [[mineral]] named after [[Jean Wyart]] (1902–1992), mineralogist at the [[University of Paris|Sorbonne]], [[Paris]]. It has greenish-black, black, or violet-black, translucent to opaque orthorhombic crystals.<ref name=":0" /> It has a hardness of 3 to 4 on the [[Mohs scale]]. Its other names are '''ianthinite''' (of Bignand), wyartit and wyartita. It belongs to the [[uranium carbonate]] group of minerals. It is found next to [[rutherfordine]] in [[Shinkolobwe]], [[Katanga Province|Shaba]], [[Zaire]].<ref name=":0">{{Cite web|title=Wyartite Mineral Data|url=http://www.webmineral.com/data/Wyartite.shtml|access-date=25 February 2021|website=Webmineral.com}}</ref> |
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Determination of the structure of wyartite provided the first evidence for a [[pentavalent]] uranium mineral. Like all uranium minerals it is [[radioactive]]. |
Determination of the structure of wyartite provided the first evidence for a [[pentavalent]] uranium mineral. Like all uranium minerals it is [[radioactive]]. |
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Latest revision as of 17:31, 19 January 2024
| Wyartite | |
|---|---|
| General | |
| Category | Carbonate minerals |
| Formula (repeating unit) | CaU5+ (UO 2) 2(CO 3)O 4(OH)·7H2O |
| IMA symbol | Wya[1] |
| Strunz classification | 5.EA.15 |
| Crystal system | Orthorhombic |
| Crystal class | Disphenoidal (222) Space group: (222) |
| Space group | P212121 |
| Identification | |
| Color | black, violet-black (fresh); yellowish brown, greenish brown (exposed) |
| Luster | vitreous, sub-metallic, dull |
| Diaphaneity | transparent, translucent, opaque |
| Other characteristics |  Radioactive |
| References | [2][3] |
Wyartite CaU5+
(UO
2)
2(CO
3)O
4(OH)·7H2O is a uranium bearing mineral named after Jean Wyart (1902–1992), mineralogist at the Sorbonne, Paris. It has greenish-black, black, or violet-black, translucent to opaque orthorhombic crystals.[4] It has a hardness of 3 to 4 on the Mohs scale. Its other names are ianthinite (of Bignand), wyartit and wyartita. It belongs to the uranium carbonate group of minerals. It is found next to rutherfordine in Shinkolobwe, Shaba, Zaire.[4]
Determination of the structure of wyartite provided the first evidence for a pentavalent uranium mineral. Like all uranium minerals it is radioactive.
References[edit]
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ Mindat
- ^ Mineralienatlas
- ^ a b "Wyartite Mineral Data". Webmineral.com. Retrieved 25 February 2021.