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
Spodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria


09772070017363856435409.jpg
Heulandite Subgroup, etc.

Spodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
09772070017363856435409.jpg
Heulandite Subgroup, etc.

Spodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
02487800017361192821905.jpg
Heulandite Subgroup, etc.

Spodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
Locality type:Prospect
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
Associated Minerals Based on Photo Data:
Uralolite1
Fairfieldite1
Data
Mineral Data:Click here to view Heulandite Subgroup data
Locality Data:Click here to view Spodumene prospect, Brandrücken, Frantschach-Sankt Gertraud, Wolfsberg District, Carinthia, Austria
Data Identifiers
Mindat Occurrence Record ID:200876
Long-form Identifier:1:3:200876:9
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
12.7km (7.9 miles) ⓘHematite Mine, Waldenstein, Wolfsberg, Wolfsberg District, Carinthia, Austria
14.8km (9.2 miles) ⓘA2 motorway tunnel, Übelskogel, Bad Sankt Leonhard im Lavanttal, Wolfsberg District, Carinthia, Austria
14.8km (9.2 miles) ⓘAmphibolite quarry, Krumbach, Soboth, Eibiswald, Deutschlandsberg District, Styria, Austria
16.4km (10.2 miles) ⓘGradischkogel, Sankt Vinzenz, Lavamünd, Wolfsberg District, Carinthia, Austria
16.4km (10.2 miles) ⓘSauerbrunngraben quarries, Stainz, Deutschlandsberg District, Styria, Austria
17.4km (10.8 miles) ⓘGneiss quarries, Deutschlandsberg, Deutschlandsberg District, Styria, Austria
17.6km (10.9 miles) ⓘBasalt quarry, Kollnitz, Sankt Paul im Lavanttal, Wolfsberg District, Carinthia, Austria
19.6km (12.2 miles) ⓘKoglereck quarry, Sankt Vinzenz, Lavamünd, Wolfsberg District, Carinthia, Austria
26.7km (16.6 miles) ⓘGertrusk, Wolfsberg, Wolfsberg District, Carinthia, Austria
28.3km (17.6 miles) ⓘIrregger Schwaig (Schumetzkogel), Lölling, Hüttenberg, Sankt Veit an der Glan District, Carinthia, Austria
References
Niedermayr, G.; Praetzel, I. (1995) Mineralien Kärntens. Naturwissenschaftlicher Verein für Kärnten. 232 pp.
 
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