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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Microlite Group from
Věžná I pegmatite, Věžná, Žďár nad Sázavou District, Vysočina Region, Czech Republic


Locality type:Pegmatite
Classification
Species:'Microlite Group' (not an IMA approved species)
Formula:A2-mTa2X6-wZ1-n
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Microlite Group data
Locality Data:Click here to view Věžná I pegmatite, Věžná, Žďár nad Sázavou District, Vysočina Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:217752
Long-form Identifier:1:3:217752:6
GUID (UUID V4):0
Nearest other occurrences of Microlite Group
36.4km (22.6 miles) ⓘKožichovice II pegmatite, Kožichovice, Třebíč District, Vysočina Region, Czech Republic
44.4km (27.6 miles) ⓘPuklice pegmatites, Puklice, Jihlava District, Vysočina Region, Czech Republic
83.5km (51.9 miles) ⓘHengl quarry, Eibenstein an der Thaya, Raabs an der Thaya, Waidhofen an der Thaya District, Lower Austria, Austria
87.7km (54.5 miles) ⓘRasovna (Schinderhübl), Maršíkov (Marchendorf), Velké Losiny, Šumperk District, Olomouc Region, Czech Republic
88.3km (54.9 miles) ⓘStřelecký důl (Scheibengraben), Maršíkov (Marchendorf), Velké Losiny, Šumperk District, Olomouc Region, Czech Republic
References
www.cseg.ca/conferences/2000/556.PDF.
Černý, P. (1963) Epididymite and milarite—alteration products of beryl from Věžná, Czechoslovakia. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (261) 450-457 doi:10.1180/minmag.1963.033.261.02
Cerny, P., Novak, M., Chapman, R., & Masau, M. (2000). Subsolidus behavior of niobian rutile from Vezna, Czech Republic: A model for exsolutions in phases with Fe2+>> Fe3+. Journal of GEOsciences, 45(1-2), 21-35.
 
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