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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Heulandite Subgroup from
Granodiorite quarries (incl. Kusser Quarry), Hötzendorf, Tittling, Tittling, Passau District, Lower Bavaria, Bavaria, Germany


Locality type:Quarry
Classification
Species:'Heulandite Subgroup' (not an IMA approved species)
Formula:(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heulandite Subgroup data
Locality Data:Click here to view Granodiorite quarries (incl. Kusser Quarry), Hötzendorf, Tittling, Tittling, Passau District, Lower Bavaria, Bavaria, Germany
Data Identifiers
Mindat Occurrence Record ID:92309
Long-form Identifier:1:3:92309:3
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
13.5km (8.4 miles) ⓘSteinerleinbach Quarry, Röhrnbach, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
14.0km (8.7 miles) ⓘGneiss quarry, Saunstein, Schönberg, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
19.5km (12.1 miles) ⓘDiorite quarries, Lindberg, Waldkirchen, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
21.1km (13.1 miles) ⓘEitzing Quarry, Oberfrauenwald, Waldkirchen, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
24.1km (15.0 miles) ⓘGrub Quarries, Grub, Rinchnach, Regen District, Lower Bavaria, Bavaria, Germany
31.9km (19.8 miles) ⓘTeufelstisch Quarry, Bischofsmais, Regen District, Lower Bavaria, Bavaria, Germany
40.3km (25.1 miles) ⓘPrünst Quarry, Prünst, Patersdorf, Regen District, Lower Bavaria, Bavaria, Germany
40.4km (25.1 miles) ⓘUnnamed quarry, Neustift im Mühlkreis, Rohrbach District, Upper Austria, Austria
40.5km (25.1 miles) ⓘSilberberg Mine, Bodenmais, Regen District, Lower Bavaria, Bavaria, Germany
44.6km (27.7 miles) ⓘHeidlbrunn quarry, Aigen-Schlägl, Rohrbach District, Upper Austria, Austria
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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