margaritasite
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Margaritasite is a yellow, caesium-bearing mineral in the carnotite group. Its chemical formula is (Cs, K, H3O)2(UO2)2V2O8·H2O and its crystal system is monoclinic (space group P21/a).
Key facts
- Mineral.name
- Margaritasite
- Mineral.category
- Carnotite group
- Mineral.formula
- (Cs, K, H3O)2(UO2)2V2O8·H2O
- Mineral.IMAsymbol
- Mgt
- Mineral.strunz
- 7/E.11-60
- Mineral.dana
- 40.2a.28.2
- Mineral.system
- Monoclinic
- Mineral.class
- 2/m – Prismatic
- Mineral.symmetry
- P21/a (no. 14)
- Mineral.unit cell
- a = 10.514(3) Å, b = 8.425(3) Å, c = 7.252(5) Å β = 106.01°
- Mineral.color
- Yellow
- Mineral.habit
- Tabular crystals, typically massive
- Mineral.diaphaneity
- Translucent
- Mineral.gravity
- 5.41
- Mineral.opticalprop
- Biaxial (−) α = [ 2.7
- Mineral.2V
- 45.5◦
- Mineral.other
- 25px Radioactive
via Wikipedia infobox
Wikidata facts
Show 5 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 4.HB.05
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.HB.05
- crystal system
- monoclinic crystal system
- IMA Mineral Symbol
- Mgt
- chemical formula
- Cs₂(UO₂)₂(VO₄)₂·H₂O
Sources (1)
via Wikidata · CC0
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Encyclopedic overview
3 sectionsContents
- Name and discovery
- See also
- References
Margaritasite is a yellow, caesium-bearing mineral in the carnotite group. Its chemical formula is (Cs, K, H3O)2(UO2)2V2O8·H2O and its crystal system is monoclinic (space group P21/a).
==Name and discovery== It was first described in 1982 from the Margaritas uranium deposit in the Peña Blanca district of the municipality of Aldama, in the Mexican state of Chihuahua.
Excerpted from Wikipedia’s “margaritasite” article, available under the CC BY-SA 4.0 licence.