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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Calcite from
Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria


03674300017858400273065.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
09586550017858362776264.jpg
Calcite, etc.

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
07225230017858362286686.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
01385340017858362489327.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
09958120017858397717055.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
04703300017858362769646.jpg
Calcite, etc.

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
00517870017858361815881.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
05976820017858362465793.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
01714210017861381313880.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
07797920017861381317880.jpg
Calcite, etc.

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
04067420017861381312993.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
00149520017861381325818.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
Locality type:Processing Plant
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Ferrierite-Mg2
Analcime2
Baryte2
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:1982909
Long-form Identifier:1:3:1982909:0
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.7km (0.4 miles) ⓘEuropaplatz, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
0.8km (0.5 miles) ⓘSchinitzkogel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
1.5km (0.9 miles) ⓘGeieregg, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
2.2km (1.4 miles) ⓘS6 motorway tunnel (Tanzenberg tunnel), Tanzenberg, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
2.8km (1.7 miles) ⓘGloriette, Bruck an der Mur, Bruck-Mürzzuschlag District, Styria, Austria
3.6km (2.3 miles) ⓘEmberg, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
5.5km (3.4 miles) ⓘS6 motorway tunnel (Heuberg tunnel; St. Ruprecht tunnel; Bruck Tunnel), Bruck an der Mur, Bruck-Mürzzuschlag District, Styria, Austria
5.7km (3.5 miles) ⓘLead mine, Graschnitzgraben, Sankt Marein im Mürztal, Bruck-Mürzzuschlag District, Styria, Austria
7.2km (4.4 miles) ⓘS35 motorway tunnel (Kaltenbach tunnel), Zlatten, Pernegg an der Mur, Bruck-Mürzzuschlag District, Styria, Austria
8.6km (5.4 miles) ⓘS35 motorway tunnel (Kirchdorf tunnel), Kirchdorf, Pernegg an der Mur, Bruck-Mürzzuschlag District, Styria, Austria
References
Auer, C. (2026): 2400) Almandin, Amphibol, Analcim, Aragonit, Baryt, Calcit, Chalkopyrit, Chlorit, Dolomit, Feldspat, Ferrierit-(Mg), Gips, Graphit, Muskovit, Natrojarosit, Pyrit, Pyrrhotin, Quarz (Bergkristall), Sphalerit sowie Turmalin vom Schlossbergstollen bei Kapfenberg, Bezirk Bruck an der Mur, Steiermark. Pp. 484-487 in Walter, F. et al. (2026): Neue Mineralfunde aus Österreich LXXV. Carinthia II, 216./136., 397-506.
 
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