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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Biotite from
Pegmatite occurrences, Dolní Svince, Dolní Třebonín, Český Krumlov District, South Bohemian Region, Czech Republic


06932540017370830176566.jpg
Biotite

Pegmatite occurrences, Dolní Svince, Dolní Třebonín, Český Krumlov District, South Bohemian Region, Czech Republic
06932540017370830176566.jpg
Biotite

Pegmatite occurrences, Dolní Svince, Dolní Třebonín, Český Krumlov District, South Bohemian Region, Czech Republic
01878550017272271561610.jpg
Biotite

Pegmatite occurrences, Dolní Svince, Dolní Třebonín, Český Krumlov District, South Bohemian Region, Czech Republic
Locality type:Pegmatite Field
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Pegmatite occurrences, Dolní Svince, Dolní Třebonín, Český Krumlov District, South Bohemian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:485649
Long-form Identifier:1:3:485649:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
6.1km (3.8 miles) ⓘPlešovice quarry, Plešovice, Zlatá Koruna, Český Krumlov District, South Bohemian Region, Czech Republic
8.6km (5.4 miles) ⓘNedabyle quarry, Nedabyle, České Budějovice District, South Bohemian Region, Czech Republic
9.4km (5.9 miles) ⓘHolubovský mlýn, Holubov, Český Krumlov District, South Bohemian Region, Czech Republic
16.0km (9.9 miles) ⓘNová Ves pegmatite, Nová Ves, Český Krumlov District, South Bohemian Region, Czech Republic
17.6km (10.9 miles) ⓘBlansky´les granulite massif, Světlík, Český Krumlov District, South Bohemian Region, Czech Republic
22.0km (13.7 miles) ⓘKtiš kinzigite occurrence (Tisch kinzigite occurrence), Ktiš (Tisch), Prachatice District, South Bohemian Region, Czech Republic
24.7km (15.3 miles) ⓘMoravice, Frymburk, Český Krumlov District, South Bohemian Region, Czech Republic
34.6km (21.5 miles) ⓘKobylí hora quarry, Prachatice, Prachatice District, South Bohemian Region, Czech Republic
38.3km (23.8 miles) ⓘHalámky feldspar deposit, Nová Ves nad Lužnicí, Jindřichův Hradec District, South Bohemian Region, Czech Republic
45.3km (28.2 miles) ⓘLest, Kefermarkt, Freistadt District, Upper Austria, Austria
References
Hušák, M. (1988): Pegmatit z Dolního Třebonína u Českých Budějovic. Sborník Jihočeského muzea v Českých Budějovicích, Přírodní vědy, 28, 18.
 
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