Wyartite: Difference between revisions

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{{Short description|Uranium bearing crystal}}
{{Infobox mineral
{{Infobox mineral
| name = Wyartite
| name = Wyartite
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| category = [[Carbonate minerals]]
| category = [[Carbonate minerals]]
| formula = {{Chem|CaU|5+|(UO|2|)|2|(CO|3|)O|4|(OH)}}·7H<sub>2</sub>O
| formula = {{Chem|CaU|5+|(UO|2|)|2|(CO|3|)O|4|(OH)}}·7H<sub>2</sub>O
| IMAsymbol = Wya<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}</ref>
⚫
| molweight =
| strunz = 5.EA.15
| strunz = 5.EA.15
⚫
| system = [[Orthorhombic]]
⚫
| symmetry = Orthorhombic <br/>Point group 222 <br/>Space group P2<sub>1</sub>2<sub>1</sub>2<sub>1</sub>
| class = Disphenoidal (222) <br/>[[Space group]]: (222)
⚫
| symmetry = ''P''2<sub>1</sub>2<sub>1</sub>2<sub>1</sub>
| unit cell =
| unit cell =
⚫
| molweight =
| color = black, violet-black (fresh); yellowish brown, greenish brown (exposed)
| color = black, violet-black (fresh); yellowish brown, greenish brown (exposed)
| colour =
| colour =
| habit =
| habit =
⚫
| system = Orthorhombic
| twinning =
| twinning =
| cleavage =
| cleavage =
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| impurities =
| impurities =
| alteration =
| alteration =
| other =
| other = [[Image:Radioactive.svg|25px]] [[Radioactive]]
| prop1 =
| prop1 =
| prop1text =
| prop1text =
| 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>
}}
}}
'''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 [[Sorbonne]], [[Paris]]. Greenish black, black, black violet in color, translucent to opaque orthorhombic crystals presentantion. A hardness of 3 - 4 Mohs. 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>[http://www.webmineral.com/data/Wyartite.shtml Webmineral data]</ref>
'''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>


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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[[Category:Carbonate minerals]]
[[Category:Carbonate minerals]]
[[Category:Orthorhombic minerals]]
[[Category:Orthorhombic minerals]]
[[Category:Minerals in space group 19]]
[[Category:Uranium(V) compounds]]
[[Category:Uranyl compounds]]



{{Carbonate-mineral-stub}}
{{Carbonate-mineral-stub}}

Latest revision as of 17:31, 19 January 2024

Wyartite
General
CategoryCarbonate minerals
Formula
(repeating unit)		CaU5+
(UO
2)
2(CO
3)O
4(OH)·7H2O
IMA symbolWya[1]
Strunz classification5.EA.15
Crystal systemOrthorhombic
Crystal classDisphenoidal (222)
Space group: (222)
Space groupP212121
Identification
Colorblack, violet-black (fresh); yellowish brown, greenish brown (exposed)
Lustervitreous, sub-metallic, dull
Diaphaneitytransparent, 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]

  1. ^ 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.
  2. ^ Mindat
  3. ^ Mineralienatlas
  4. ^ a b "Wyartite Mineral Data". Webmineral.com. Retrieved 25 February 2021.


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