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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Sillimanite from
Basalt works, Triebendorf, Wiesau, Tirschenreuth District, Upper Palatinate, Bavaria, Germany


Locality type:Workings
Classification
Species:Sillimanite
Formula:Al2(SiO4)O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sillimanite data
Locality Data:Click here to view Basalt works, Triebendorf, Wiesau, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
Data Identifiers
Mindat Occurrence Record ID:101584
Long-form Identifier:1:3:101584:3
GUID (UUID V4):0
Nearest other occurrences of Sillimanite
3.7km (2.3 miles) ⓘGroßer Teichelberg (Teichelberg; Teichlberg), Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
11.5km (7.1 miles) ⓘBayerland mine, Pfaffenreuth, Leonberg, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
13.0km (8.1 miles) ⓘKTB borehole (KTB pilot hole), Windischeschenbach, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
19.4km (12.1 miles) ⓘWilma Mine, Wendersreuth, Kirchendemenreuth, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
20.5km (12.7 miles) ⓘAhornberg, Bärnau, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
23.5km (14.6 miles) ⓘDyleň, Stará Voda, Cheb District, Karlovy Vary Region, Czech Republic
33.0km (20.5 miles) ⓘBrünst Quarry, Leßlohe, Georgenberg, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
34.0km (21.1 miles) ⓘUnnamed placers, Pleystein, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
34.9km (21.7 miles) ⓘZadní Chodov deposit (Hinterkotten deposit), Zadní Chodov, Tachov District, Plzeň Region, Czech Republic
35.1km (21.8 miles) ⓘMiesbrunn pegmatite–aplite swarm, Pleystein, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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