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


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Malachite6
Azurite5
Limonite4
Cerussite3
Chalcopyrite3
Native Iron2
Linarite1
Köttigite1
Ianbruceite1
Langite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Glücksrad Mine, Oberschulenberg, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
Data Identifiers
Mindat Occurrence Record ID:76189
Long-form Identifier:1:3:76189:1
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.3km (0.8 miles) ⓘFestenburg Mine (Festenburg adit), Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
2.5km (1.5 miles) ⓘKahlenberg district, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
2.8km (1.7 miles) ⓘHaus Braunschweig shaft, Galgenberg, Clausthal-Zellerfeld, 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
4.6km (2.9 miles) ⓘSt Lorenz Mine, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
4.6km (2.9 miles) ⓘDorothea Landeskrone Mine, Galgenberg, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
4.6km (2.9 miles) ⓘNeufang Mine, Galgenberg, 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
References
Wittern, A.; Schnorrer-Köhler, G. (1986) Die Minerale der Glücksrad-Halde bei Oberschulenberg / Harz [The minerals of the Glücksrad mine dump near Oberschulenberg / Harz]. Lapis, 11 (1). 9-18; 42
 
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