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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Zircon from
Gleinalm tunnel, Sankt Michael in Obersteiermark, Leoben District, Styria, Austria


Locality type:Tunnel
Classification
Species:Zircon
Formula:Zr(SiO4)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Zircon data
Locality Data:Click here to view Gleinalm tunnel, Sankt Michael in Obersteiermark, Leoben District, Styria, Austria
Data Identifiers
Mindat Occurrence Record ID:920888
Long-form Identifier:1:3:920888:9
GUID (UUID V4):0
Nearest other occurrences of Zircon
10.5km (6.6 miles) ⓘHäuselberg, Leoben, Leoben District, Styria, Austria
11.1km (6.9 miles) ⓘRailway tunnel, Galgenberg, Leoben, Leoben District, Styria, Austria
11.7km (7.3 miles) ⓘAugraben, Sankt Lorenzen bei Knittelfeld, Sankt Margarethen bei Knittelfeld, Murtal District, Styria, Austria
11.8km (7.3 miles) ⓘPreg, Sankt Lorenzen bei Knittelfeld, Sankt Margarethen bei Knittelfeld, Murtal District, Styria, Austria
12.7km (7.9 miles) ⓘGraphite mine, Kaisersberg, Sankt Stefan ob Leoben, Leoben District, Styria, Austria
13.2km (8.2 miles) ⓘGulsen, Sankt Marein-Feistritz, Murtal District, Styria, Austria
13.9km (8.6 miles) ⓘHartlegraben, Kaisersberg, Sankt Stefan ob Leoben, Leoben District, Styria, Austria
17.9km (11.1 miles) ⓘQuartz quarry, Wolfsgruben (Wolfgruben; Wolfsgrube), Seiz, Kammern im Liesingtal, Leoben District, Styria, Austria
25.6km (15.9 miles) ⓘLeucophyllite mine, Kothgraben (Kotgraben), Kleinfeistritz, Weißkirchen in Steiermark, Murtal District, Styria, Austria
26.7km (16.6 miles) ⓘFrei-Gössnitz creek pegmatite outcrops, Maria Lankowitz, Voitsberg District, Styria, Austria
References
Taucher, J. & Hollerer, C. E. (2015): Über einige Mineralien aus dem Gleinalmtunnel, 2. Röhre, Südvortrieb, Steiermark, Österreich. Der Steirische Mineralog, 29, 44-46.
 
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