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Plavnoite

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Rare complex uranium sulfate mineral
Plavnoite
General
CategorySulfate
Formula
(repeating unit)		K0.8Mn0.6•3.5H2O
IMA symbolPvn
Crystal systemMonoclinic
Crystal classPrismatic (2/m)
(same H-M symbol)
Space groupC2/m
Unit cella = 8.63, b = 14.28,
c = 8.86 , β = 104.04° (approximated)
Identification
Other characteristics Radioactive
References

Plavnoite is a rare complex uranium sulfate mineral with the formula K0.8Mn0.6•3.5H2O. Typically for the secondary uranium mineral, plavnoite contains uranyl groups. It was discovered in the Plavno mine in Jáchymov, Czech Republic. The Jáchymov site is known as a type locality for many rare and unique minerals.

Relation to other minerals

Although related to zippeite, plavnoite is chemically unique.

References

  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. ^ Plášil, J., Škácha, P., Škoda, R., Kampf, A.R., Sejkora, J., Čejka, J., Hloušek, J., Kasatkin, A.V., Pavlíček, R., and Babka, K., 2015. Plavnoite, IMA 2015-059. CNMNC Newsletter No. 27, October 2015, 1229; Mineralogical Magazine 79, 1229–1236
  3. "Plavnoite: Plavnoite mineral information and data". Mindat.org. Retrieved 2016-03-13.
  4. "Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic - Mindat.org". Mindat.org. Retrieved 2016-03-13.
  5. "Plavnoite: Plavnoite mineral information and data". Mindat.org. Retrieved 2016-03-13.

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