Plavnoite Explained
| Plavnoite |
| Category: | Sulfate |
| Formula: | K0.8Mn0.6[(UO<sub>2</sub>)<sub>2</sub>O<sub>2</sub>(SO<sub>4</sub>)]•3.5H2O |
| Imasymbol: | Pvn[1] |
| System: | Monoclinic |
| Class: | Prismatic (2/m)
(same H-M symbol) |
| Symmetry: | C2/m |
| Unit Cell: | a = 8.63, b = 14.28,
c = 8.86 [Å], β = 104.04° (approximated) |
| Other: | Radioactive |
Plavnoite is a rare complex uranium sulfate mineral with the formula K0.8Mn0.6[(UO<sub>2</sub>)<sub>2</sub>O<sub>2</sub>(SO<sub>4</sub>)]•3.5H2O. Typically for the secondary uranium mineral, plavnoite contains uranyl groups. It was discovered in the Plavno mine in Jáchymov, Czech Republic.[2] [3] The Jáchymov site is known as a type locality for many rare and unique minerals.[4]
Relation to other minerals
Although related to zippeite,[2] plavnoite is chemically unique.[5]
Notes and References
- Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3 . 291–320. 10.1180/mgm.2021.43 . 2021MinM...85..291W . 235729616 . free.
- 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
- Web site: Plavnoite: Plavnoite mineral information and data . Mindat.org . 2016-03-13.
- Web site: Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic - Mindat.org . Mindat.org . 2016-03-13.
- Web site: Plavnoite: Plavnoite mineral information and data . Mindat.org . 2016-03-13.
