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
Neumühle quarry, Loistal, Schiltern, Langenlois, Krems-Land District, Lower Austria, Austria


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 Neumühle quarry, Loistal, Schiltern, Langenlois, Krems-Land District, Lower Austria, Austria
Data Identifiers
Mindat Occurrence Record ID:884355
Long-form Identifier:1:3:884355:5
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
1.3km (0.8 miles) ⓘLoiser Berg, Langenlois, Langenlois, Krems-Land District, Lower Austria, Austria
17.7km (11.0 miles) ⓘZwettler Leiten, Felling, Gföhl, Krems-Land District, Lower Austria, Austria
24.6km (15.3 miles) ⓘTischwand, St Johann im Mauerthale, Rossatz-Arnsdorf, Krems-Land District, Lower Austria, Austria
28.6km (17.8 miles) ⓘRenz quarry, Elsenreith, Kottes-Purk, Zwettl District, Lower Austria, Austria
32.9km (20.4 miles) ⓘSiebenhandl quarry (Kraxnerklippe), Felbring, Maria Laach am Jauerling, Krems-Land District, Lower Austria, Austria
39.2km (24.4 miles) ⓘHengl quarry, Eibenstein an der Thaya, Raabs an der Thaya, Waidhofen an der Thaya District, Lower Austria, Austria
49.6km (30.8 miles) ⓘPoschacher Quarry, Artolz, Pfaffenschlag bei Waidhofen, Waidhofen an der Thaya District, Lower Austria, Austria
50.3km (31.2 miles) ⓘLoja, Persenbeug-Gottsdorf, Melk District, Lower Austria, Austria
82.5km (51.3 miles) ⓘSkřipina quarry, Senorady, Brno-Country District, South Moravian Region, Czech Republic
References
Sedlacek, Max (1950) Mineralogische Notizen aus dem niederösterreichischen Waldviertel, I. Tschermaks Mineralogische und Petrographische Mitteilungen, 1 (4). 353-360 doi:10.1007/bf01145391
KOLLER, Friedrich, NEUMAYER, Richard & NIEDERMAYR, Gerhard (1978): "Alpine Klüfte" im Kristallin der Böhmischen Masse.- Der Aufschluss, 29/11, 373-378, Heidelberg.
 
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