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
Emmertsberg quarry, Waschenbach, Mühltal, Darmstadt-Dieburg, Darmstadt, Hesse, Germany


08628580017368868514018.jpg
Heulandite Subgroup

Emmertsberg quarry, Waschenbach, Mühltal, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
08628580017368868514018.jpg
Heulandite Subgroup

Emmertsberg quarry, Waschenbach, Mühltal, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
02393680017272022624395.jpg
Heulandite Subgroup

Emmertsberg quarry, Waschenbach, Mühltal, Darmstadt-Dieburg, Darmstadt, Hesse, 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 Emmertsberg quarry, Waschenbach, Mühltal, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
Data Identifiers
Mindat Occurrence Record ID:80797
Long-form Identifier:1:3:80797:1
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
0.8km (0.5 miles) ⓘGlasberg quarry, Nieder-Beerbach, Mühltal, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
8.5km (5.3 miles) ⓘMühlberg Quarry, Billings, Fischbachtal, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
12.4km (7.7 miles) ⓘKreuzer & Böhringer Quarry, Das Buch, Lindenfels, Bergstraße, Darmstadt, Hesse, Germany
14.2km (8.8 miles) ⓘAorite quarry (Bitsch Quarry; Am Bannels), Erlenbach, Fürth, Bergstraße, Darmstadt, Hesse, Germany
18.4km (11.4 miles) ⓘRöhrig quarry (Röhrig gravel works), Kohlplatte, Sonderbach, Heppenheim, Bergstraße, Darmstadt, Hesse, Germany
41.6km (25.8 miles) ⓘStahl quarry, Dörrmorsbach, Haibach, Aschaffenburg District, Lower Franconia, Bavaria, Germany
67.8km (42.1 miles) ⓘGaulsberg quarry, Ortenberg, Wetteraukreis, Darmstadt, Hesse, Germany
References
Nickel, E., and Fettel, M. (1985): Odenwald. Sammlung geologischer Führer Vol. 65, 2nd ed., Bornträger (Berlin, Stuttgart), 231 pp.
 
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