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
Basalt quarry, Malscheid (Mahlscheid; Mahlscheiderkopf; Mahlscheider Kopf), Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany


Locality type:Quarry
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Basalt quarry, Malscheid (Mahlscheid; Mahlscheiderkopf; Mahlscheider Kopf), Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:1007479
Long-form Identifier:1:3:1007479:4
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.4km (0.2 miles) ⓘAlte Malscheid Mine, Malscheid (Mahlscheid; Mahlscheiderkopf; Mahlscheider Kopf), Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
0.9km (0.6 miles) ⓘWolf Mine, Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
1.1km (0.7 miles) ⓘSan Fernando Mine, Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
1.6km (1.0 miles) ⓘGroße Burg Mine, Altenseelbach, Neunkirchen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
2.8km (1.7 miles) ⓘFriedrich-Wilhelm Mine, Biersdorf, Daaden, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
2.8km (1.8 miles) ⓘFüsseberg Mine, Biersdorf, Daaden, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
3.4km (2.1 miles) ⓘHollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
4.3km (2.6 miles) ⓘBreimehl Mine, Brachbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
4.5km (2.8 miles) ⓘRamberg mine, Niederdreisbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
4.7km (2.9 miles) ⓘNeue Hoffnung Mine, Niederdreisbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
References
Klein, E. (2011) Der Steinbruch Mahlscheid bei Herdorf im Siegerland. Mineralien-Welt, 22 (3). 28-35
 
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