Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Gilbertite from
Uranium deposit, Rudolfstein, Weißenstadt, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany


Locality type:Deposit
Classification
Species:Muscovite var: Gilbertite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gilbertite data
Locality Data:Click here to view Uranium deposit, Rudolfstein, Weißenstadt, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
Data Identifiers
Mindat Occurrence Record ID:667200
Long-form Identifier:1:3:667200:3
GUID (UUID V4):0
Nearest other occurrences of Gilbertite
5.5km (3.4 miles) ⓘFuchsbau quarry, Tröstauer Forst-West, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
5.6km (3.5 miles) ⓘStreuspitz, Weißenstadter Forst-Nord, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
7.2km (4.5 miles) ⓘReinersreuth quarry (Köhlerloh quarry), Reinersreuth, Sparneck, Hof District, Upper Franconia, Bavaria, Germany
8.2km (5.1 miles) ⓘSilberhaus, Tröstauer Forst-West, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
8.2km (5.1 miles) ⓘEpprechtstein, Kirchenlamitz, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
97.3km (60.5 miles) ⓘGreifenstein adit, Ehrenfriedersdorf, Erzgebirgskreis, Saxony, Germany
99.6km (61.9 miles) ⓘSauberg Mine, Ehrenfriedersdorf, Erzgebirgskreis, Saxony, Germany
References
Hanneberg, A., Simon, P., Wolkersdorfer, C. (2009) Galmei und schöne Wulfenite: Der Blei-Zink-Bergbau rund um den Fernpaß in Tirol. Lapis, 34 (4). 21-31
Meier, S., Dünkel, B. (2010) Das Zinn- und Uranbergwerk am Rudolfstein bei Weißenstadt, Fichtelgebirge. Lapis: 35(2): 29-37; 54.
 
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