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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Bertrandite from
Feldspar quarry, Vysoký Kámen, Krásno, Sokolov District, Karlovy Vary Region, Czech Republic


Locality type:Quarry
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Feldspar quarry, Vysoký Kámen, Krásno, Sokolov District, Karlovy Vary Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:543714
Long-form Identifier:1:3:543714:6
GUID (UUID V4):0
Nearest other occurrences of Bertrandite
42.7km (26.5 miles) ⓘLängenau, Selb, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
48.9km (30.4 miles) ⓘGelbe Birke Mine, Beierfeld, Grünhain-Beierfeld, Erzgebirgskreis, Saxony, Germany
50.1km (31.1 miles) ⓘJohannes Mine, Göpfersgrün, Wunsiedel, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
53.2km (33.0 miles) ⓘDörfel Quarry (Bögl Quarry), Dörfel, Schlettau, Erzgebirgskreis, Saxony, Germany
58.6km (36.4 miles) ⓘKleiner Kornberg, Niederlamitz, Kirchenlamitz, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
60.4km (37.5 miles) ⓘSauberg Mine, Ehrenfriedersdorf, Erzgebirgskreis, Saxony, Germany
60.5km (37.6 miles) ⓘEpprechtstein, Kirchenlamitz, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
62.5km (38.9 miles) ⓘZufurt quarry, Tröstauer Forst-West, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
65.1km (40.4 miles) ⓘStreuspitz, Weißenstadter Forst-Nord, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
65.7km (40.8 miles) ⓘReinersreuth quarry (Köhlerloh quarry), Reinersreuth, Sparneck, Hof District, Upper Franconia, Bavaria, Germany
References
Sejkora, J., Ondruš, P., Fikar, M., Veselovský, F., Mach, Z., Gabašová, A. (2006) New data on mineralogy of the Vysoký Kámen deposits near Krásno, Slavkovský les area, Czech Republic. Journal of the Czech Geological Society, 51 (1-2) 43-55
 
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