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
Tilkerode mining district, Mansfeld, Mansfeld-Südharz, Saxony-Anhalt, Germany


Locality type:Mining District
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 Tilkerode mining district, Mansfeld, Mansfeld-Südharz, Saxony-Anhalt, Germany
Data Identifiers
Mindat Occurrence Record ID:96805
Long-form Identifier:1:3:96805:0
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
29.6km (18.4 miles) ⓘAllzunah Castle, Herrmannsacker, Harztor, Nordhausen District, Thuringia, Germany
32.8km (20.4 miles) ⓘOberstahlberg iron mines, Neuwerk, Rübeland, Oberharz am Brocken, Harz, Saxony-Anhalt, Germany
33.8km (21.0 miles) ⓘAmsdorf lignite open pit, Amsdorf, Seegebiet Mansfelder Land, Mansfeld-Südharz, Saxony-Anhalt, Germany
35.4km (22.0 miles) ⓘNetzberg, Ilfeld, Harztor, Nordhausen District, Thuringia, Germany
38.0km (23.6 miles) ⓘBüchenberg Mine, Elbingerode, Oberharz am Brocken, Harz, Saxony-Anhalt, Germany
45.3km (28.2 miles) ⓘSilberner Mann mine, Hasserode, Wernigerode, Harz, Saxony-Anhalt, Germany
45.3km (28.2 miles) ⓘQuartz occurrences, Hippeln, Hasserode, Wernigerode, Harz, Saxony-Anhalt, Germany
45.4km (28.2 miles) ⓘSt Georg Mine (Goslar'sche Gleie), Hasserode, Wernigerode, Harz, Saxony-Anhalt, Germany
52.6km (32.7 miles) ⓘKuckanstal, Bad Sachsa, Göttingen District, Lower Saxony, Germany
62.7km (39.0 miles) ⓘMammendorf Quarry, Mammendorf, Eichenbarleben, Hohe Börde, Börde, Saxony-Anhalt, Germany
References
Wittern, Artur (2001) Mineralfundorte und ihre Minerale in Deutschland (1st ed.) Schweizerbart, Stuttgart.
 
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