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


Locality type:Pegmatite
Classification
Species:Albite var: Oligoclase
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Oligoclase 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:24541
Long-form Identifier:1:3:24541:8
GUID (UUID V4):0
Nearest other occurrences of Oligoclase
4.3km (2.7 miles) ⓘRožná pegmatite (Rozna; Roschna), Rožná, Žďár nad Sázavou District, Vysočina Region, Czech Republic
13.2km (8.2 miles) ⓘProsetín Quarry, Prosetín, Žďár nad Sázavou District, Vysočina Region, Czech Republic
39.1km (24.3 miles) ⓘBudislav quarry, Budislav, Svitavy District, Pardubice Region, Czech Republic
41.5km (25.8 miles) ⓘMoravské Bránice vesuvianite occurrence (České Bránice vesuvianite occurrence; Mährisch Branitz vesuvianite occurrence; Böhmisch Branitz vesuvianite occurrence), Moravské Bránice (České Bránice; Mährisch Branitz; Böhmisch Branitz), Brno-Country District, South Moravian Region, Czech Republic
43.6km (27.1 miles) ⓘDolní Kounice quarry, Dolní Kounice, Brno-Country District, South Moravian Region, Czech Republic
43.9km (27.3 miles) ⓘKordula, Rešice, Znojmo District, South Moravian Region, Czech Republic
46.6km (29.0 miles) ⓘPokojovice pegmatite, Pokojovice, Třebíč District, Vysočina Region, Czech Republic
49.5km (30.8 miles) ⓘZárubka quarry, Vrbatuv Kostelec, Chrudim District, Pardubice Region, Czech Republic
58.9km (36.6 miles) ⓘKřižanovice deposit, Křižanovice, Chrudim District, Pardubice Region, Czech Republic
76.0km (47.2 miles) ⓘPřibyslavice, Vlkaneč, Kutná Hora District, Central Bohemian Region, Czech Republic
References
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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