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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Chalcedony from
Heimbach, Baumholder, Birkenfeld, Rhineland-Palatinate, Germany


Locality type:Municipality
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Heimbach, Baumholder, Birkenfeld, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:90239
Long-form Identifier:1:3:90239:1
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
3.8km (2.4 miles) ⓘClarashall Mine, Ruschberg, Baumholder, Birkenfeld, Rhineland-Palatinate, Germany
4.8km (3.0 miles) ⓘDienstweiler quarry, Dienstweiler, Birkenfeld, Birkenfeld, Rhineland-Palatinate, Germany
7.9km (4.9 miles) ⓘBecker Quarry, Freisen, Sankt Wendel, Saarland, Germany
8.1km (5.0 miles) ⓘKarrenberg Quarry, Reichweiler, Kusel-Altenglan, Kusel, Rhineland-Palatinate, Germany
9.3km (5.8 miles) ⓘArmy quarry, Baumholder, Baumholder, Birkenfeld, Rhineland-Palatinate, Germany
9.4km (5.8 miles) ⓘBackesberg quarry, Baumholder, Baumholder, Birkenfeld, Rhineland-Palatinate, Germany
10.2km (6.4 miles) ⓘWeißelberg (Weiselberg), Oberkirchen, Freisen, Sankt Wendel, Saarland, Germany
10.7km (6.6 miles) ⓘHellerberg quarry, Pfeffelbach, Kusel-Altenglan, Kusel, Rhineland-Palatinate, Germany
10.7km (6.6 miles) ⓘKlotzberg south slope, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany
12.4km (7.7 miles) ⓘSteinkaulenberg, Idar, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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