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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Opal-AN from
A2 Highway tunnel (Falkenberg tunnel), Wölfnitz, Klagenfurt am Wörthersee, Carinthia, Austria


Locality type:Tunnel
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view A2 Highway tunnel (Falkenberg tunnel), Wölfnitz, Klagenfurt am Wörthersee, Carinthia, Austria
Data Identifiers
Mindat Occurrence Record ID:201271
Long-form Identifier:1:3:201271:1
GUID (UUID V4):0
Nearest other occurrences of Opal-AN
35.9km (22.3 miles) ⓘHaidnerhöhe, Flattnitz, Sankt Veit an der Glan District, Carinthia, Austria
45.7km (28.4 miles) ⓘFeldspar quarry, Laas, Fresach, Villach-Land District, Carinthia, Austria
60.7km (37.7 miles) ⓘSpodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
65.8km (40.9 miles) ⓘPolanz quarry (Mauthnereck), Krumbach, Sankt Oswald ob Eibiswald, Eibiswald, Deutschlandsberg District, Styria, Austria
67.1km (41.7 miles) ⓘMüllerbauer, Schwarze Sulm, Bad Schwanberg, Deutschlandsberg District, Styria, Austria
69.5km (43.2 miles) ⓘSchwagbauer (Schwoagbauer), Osterwitz, Deutschlandsberg, Deutschlandsberg District, Styria, Austria
71.1km (44.2 miles) ⓘRostock creek, Bad Schwanberg, Deutschlandsberg District, Styria, Austria
71.6km (44.5 miles) ⓘHartner quarry, Bad Schwanberg, Deutschlandsberg District, Styria, Austria
73.5km (45.7 miles) ⓘLaßnitzgraben, Deutschlandsberg, Deutschlandsberg District, Styria, Austria
77.1km (47.9 miles) ⓘHolzbrücken mill, Ingering valley, Spielberg, Murtal District, Styria, Austria
References
Niedermayr, G.; Praetzel, I. (1995) Mineralien Kärntens. Naturwissenschaftlicher Verein für Kärnten. 232 pp.
 
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