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
Johannesschacht Mine, Wölsendorf, Schwarzach bei Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Johannesschacht Mine, Wölsendorf, Schwarzach bei Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany
Data Identifiers
Mindat Occurrence Record ID:404648
Long-form Identifier:1:3:404648:6
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.8km (0.5 miles) ⓘRoland Mine (Glückauf Mine; incl. Heinrich Mine), Stulln, Schwandorf District, Upper Palatinate, Bavaria, Germany
1.2km (0.7 miles) ⓘKocher adit, Wölsendorf, Schwarzach bei Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany
5.1km (3.2 miles) ⓘHermine Mine, Lissenthan, Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany
22.7km (14.1 miles) ⓘHuber Quarry, Winklarn, Schwandorf District, Upper Palatinate, Bavaria, Germany
25.9km (16.1 miles) ⓘScharnagl Quarry, Oedenthal, Weiden in der Oberpfalz, Upper Palatinate, Bavaria, Germany
30.4km (18.9 miles) ⓘEichelberg Mine, Sulzbach-Rosenberg, Amberg-Sulzbach District, Upper Palatinate, Bavaria, Germany
31.9km (19.8 miles) ⓘHimmelleiten Quarry, Roßbach, Wald, Cham District, Upper Palatinate, Bavaria, Germany
33.5km (20.8 miles) ⓘHagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
40.3km (25.1 miles) ⓘGertrud Mine, Menzlhof, Kirchendemenreuth, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
42.0km (26.1 miles) ⓘSulzbach No. 1 Mine, Bernhardswald, Regensburg district, Upper Palatinate, Bavaria, Germany
References
Haas, Peter (n.d.) Personal communication.
 
and/or  
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