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
Glücksrad Mine, Oberschulenberg, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Sphalerite1
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Glücksrad Mine, Oberschulenberg, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
Data Identifiers
Mindat Occurrence Record ID:30513
Long-form Identifier:1:3:30513:6
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.2km (0.1 miles) ⓘOberschulenberg, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
1.3km (0.8 miles) ⓘFestenburg Mine (Festenburg adit), Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
3.8km (2.4 miles) ⓘCharlotte Mine, Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
4.5km (2.8 miles) ⓘTöberschekopf, Hahnenklee-Bockswiese, Goslar, Goslar District, Lower Saxony, Germany
4.5km (2.8 miles) ⓘGroßfürstin Alexandra Mine, Goslar, Goslar District, Lower Saxony, Germany
4.6km (2.9 miles) ⓘSt Lorenz Mine, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
4.7km (2.9 miles) ⓘDiabasweg Quarry (Teerbau Quarry on Kehrzug), Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
4.8km (3.0 miles) ⓘKaiser Wilhelm II mine, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
6.0km (3.7 miles) ⓘNeuer Johanneser Shaft, Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
6.7km (4.1 miles) ⓘRammelsberg Mine, Rammelsberg, Goslar, Goslar District, Lower Saxony, Germany
References
Schnorrer-Köhler, G. (1988) Mineralogische Notizen IV. Der Aufschluss: 39: 153-168 (in German).
 
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