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
Silberberg Mine, Bodenmais, Regen District, Lower Bavaria, Bavaria, Germany


Locality type:Mine
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 Silberberg Mine, Bodenmais, Regen District, Lower Bavaria, Bavaria, Germany
Data Identifiers
Mindat Occurrence Record ID:91973
Long-form Identifier:1:3:91973:5
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
11.5km (7.1 miles) ⓘPrünst Quarry, Prünst, Patersdorf, Regen District, Lower Bavaria, Bavaria, Germany
14.0km (8.7 miles) ⓘTeufelstisch Quarry, Bischofsmais, Regen District, Lower Bavaria, Bavaria, Germany
16.5km (10.2 miles) ⓘGrub Quarries, Grub, Rinchnach, Regen District, Lower Bavaria, Bavaria, Germany
17.0km (10.6 miles) ⓘFürstenzeche (Oswald Mine), Buchet, Lam, Cham District, Upper Palatinate, Bavaria, Germany
27.3km (17.0 miles) ⓘGneiss quarry, Saunstein, Schönberg, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
40.5km (25.1 miles) ⓘGranodiorite quarries (incl. Kusser Quarry), Hötzendorf, Tittling, Tittling, Passau District, Lower Bavaria, Bavaria, Germany
47.0km (29.2 miles) ⓘSteinerleinbach Quarry, Röhrnbach, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
53.6km (33.3 miles) ⓘDiorite quarries, Lindberg, Waldkirchen, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
56.1km (34.9 miles) ⓘEitzing Quarry, Oberfrauenwald, Waldkirchen, Freyung-Grafenau District, Lower Bavaria, Bavaria, Germany
58.2km (36.2 miles) ⓘHimmelleiten Quarry, Roßbach, Wald, Cham District, Upper Palatinate, Bavaria, Germany
References
Obermüller, T. (1993) Der Silberberg bei Bodenmais/Bayer. Wald. Der Aufschluss: 44: 201-224.
 
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