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
Jeroným Mine, Čistá, Rovná, Sokolov District, Karlovy Vary Region, Czech Republic


Locality type:Mine
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 Jeroným Mine, Čistá, Rovná, Sokolov District, Karlovy Vary Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:560657
Long-form Identifier:1:3:560657:3
GUID (UUID V4):0
Nearest other occurrences of Sillimanite
21.1km (13.1 miles) ⓘDyleň, Stará Voda, Cheb District, Karlovy Vary Region, Czech Republic
22.7km (14.1 miles) ⓘZadní Chodov deposit (Hinterkotten deposit), Zadní Chodov, Tachov District, Plzeň Region, Czech Republic
31.4km (19.5 miles) ⓘBayerland mine, Pfaffenreuth, Leonberg, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
33.8km (21.0 miles) ⓘAhornberg, Bärnau, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
42.4km (26.3 miles) ⓘGroßer Teichelberg (Teichelberg; Teichlberg), Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
42.7km (26.6 miles) ⓘBasalt works, Triebendorf, Wiesau, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
49.7km (30.9 miles) ⓘBrünst Quarry, Leßlohe, Georgenberg, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
52.7km (32.7 miles) ⓘMiesbrunn pegmatite–aplite swarm, Pleystein, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
53.0km (32.9 miles) ⓘKTB borehole (KTB pilot hole), Windischeschenbach, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
54.0km (33.5 miles) ⓘSilbergrube, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
References
Janečka, J., Just, J., Kušnír, I.: Zpráva o výzkumu a výpočet zásob Sn-rud na ložisku Jeroným v Čisté ve Slavkovském lese (stav ke dni 1.7.1966). Loket: MS, Ústřední ústav geologický Praha, 1966. 86 s.
 
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