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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Gypsum from
Wildfrauengrotte, Teschengraben, Krieglach, Bruck-Mürzzuschlag District, Styria, Austria


05075340017368755202400.jpg
Gypsum

Wildfrauengrotte, Teschengraben, Krieglach, Bruck-Mürzzuschlag District, Styria, Austria
05075340017368755202400.jpg
Gypsum

Wildfrauengrotte, Teschengraben, Krieglach, Bruck-Mürzzuschlag District, Styria, Austria
03977730017271987532077.jpg
Gypsum

Wildfrauengrotte, Teschengraben, Krieglach, Bruck-Mürzzuschlag District, Styria, Austria
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Comments:up to 2 mm long crystals and crusts on gneiss and in vugs of fluorite
Colour:white, grey
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Wildfrauengrotte, Teschengraben, Krieglach, Bruck-Mürzzuschlag District, Styria, Austria
Data Identifiers
Mindat Occurrence Record ID:295458
Long-form Identifier:1:3:295458:5
GUID (UUID V4):0
Nearest other occurrences of Gypsum
5.5km (3.4 miles) ⓘHöllkogel, Alpl, Freßnitzgraben, Krieglach, Bruck-Mürzzuschlag District, Styria, Austria
10.1km (6.3 miles) ⓘMagnesite deposit, Sattlerkogel, Veitsch, Sankt Barbara im Mürztal, Bruck-Mürzzuschlag District, Styria, Austria
10.7km (6.7 miles) ⓘLambachgraben quarry ("Harterbachgraben" quarry), Hadersdorf, Kindberg, Bruck-Mürzzuschlag District, Styria, Austria
15.9km (9.9 miles) ⓘLead mine, Graschnitzgraben, Sankt Marein im Mürztal, Bruck-Mürzzuschlag District, Styria, Austria
16.2km (10.1 miles) ⓘBreitenau Mine, Hochlantsch, Breitenau am Hochlantsch, Bruck-Mürzzuschlag District, Styria, Austria
20.2km (12.6 miles) ⓘBohnkogel, Altenberg an der Rax, Neuberg an der Mürz, Bruck-Mürzzuschlag District, Styria, Austria
20.2km (12.6 miles) ⓘKaltenegg, Southern District, Prinzkogel mines, Prinzkogel (Prinzenkogel), Rettenegg, Weiz District, Styria, Austria
20.4km (12.7 miles) ⓘSchlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
20.7km (12.8 miles) ⓘFeistritzwald (Feistritz valley), Northern District, Prinzkogel mines, Prinzkogel (Prinzenkogel), Rettenegg, Weiz District, Styria, Austria
21.1km (13.1 miles) ⓘErzberg, Altenberg an der Rax, Neuberg an der Mürz, Bruck-Mürzzuschlag District, Styria, Austria
References
Tomazic, P. (1999): Der Blei-Zink Bergbau Freßnitzkogel - Stanglalm, Mürztal, Steiermark, Österreich. Annalen, Journal of science and art, 1, 57-62
 
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