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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Cryptomelane from
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany


07349870017272735343234.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
02884470017364064867384.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
08860900017866686771168.jpg
Cryptomelane, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
04957280017364064865988.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
07734420017364064864403.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
06597810017362607752434.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
01866690017364064876144.jpg
Cryptomelane, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
04957280017364064865988.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
07349870017272735343234.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
08575660017364064879986.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
09330290017272004765414.jpg
Cryptomelane, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
09917840017364064879082.jpg
Cryptomelane

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
Locality type:Mine
Classification
Species:Cryptomelane
Formula:K(Mn74+Mn3+)O16
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Goethite2
Data
Mineral Data:Click here to view Cryptomelane data
Locality Data:Click here to view Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
Photo GalleryView Gallery (5 photos)
Data Identifiers
Mindat Occurrence Record ID:4115
Long-form Identifier:1:3:4115:7
GUID (UUID V4):0
Nearest other occurrences of Cryptomelane
12.5km (7.7 miles) ⓘSilberbrünnle Mine, Gengenbach, Gengenbach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
45.7km (28.4 miles) ⓘKapf, Eisenbach, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
47.1km (29.3 miles) ⓘRappenloch Mine, Eisenbach, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
73.2km (45.5 miles) ⓘGottesehre Mine, Urberg, Dachsberg, Waldshut, Freiburg Region, Baden-Württemberg, Germany
85.8km (53.3 miles) ⓘLe Repas deposit, Gemaingoutte, Saint-Dié-des-Vosges, Vosges, Grand Est, France
References
Walenta, Kurt (1992) Die Mineralien des Schwarzwaldes und ihre Fundstellen. Christian Weise Verlag. 336 pp.
 
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