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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Opal-AN from
Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany


03084750017272012146171.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
07014350017369586126920.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
05716090017272021107051.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
03084750017272012146171.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
07014350017369586126920.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
08911890017369586122897.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
03084750017272012146171.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
07014350017369586126920.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
05716090017272021107051.jpg
Opal-AN

Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
Locality type:Quarry
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Humberg quarries, Burkheim, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:25511
Long-form Identifier:1:3:25511:4
GUID (UUID V4):0
Nearest other occurrences of Opal-AN
3.1km (1.9 miles) ⓘEichert, Sasbach am Kaiserstuhl, Emmendingen, Freiburg Region, Baden-Württemberg, Germany
3.6km (2.2 miles) ⓘKirchberg Quarry, Oberrotweil, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
4.5km (2.8 miles) ⓘLimberg Quarries, Sasbach am Kaiserstuhl, Emmendingen, Freiburg Region, Baden-Württemberg, Germany
7.5km (4.6 miles) ⓘFöhrenberg, Ihringen, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
35.3km (21.9 miles) ⓘKlemmbach quarry (Schweighof quarry), Schweighof, Badenweiler, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
41.0km (25.4 miles) ⓘLisbühl, Todtnau, Lörrach, Freiburg Region, Baden-Württemberg, Germany
42.2km (26.2 miles) ⓘSegen Gottes Mine (Gottes Segen Mine; Gottessegen Mine), Haslach im Kinzigtal, Haslach im Kinzigtal, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
42.9km (26.7 miles) ⓘMalsburg, Malsburg-Marzell, Lörrach, Freiburg Region, Baden-Württemberg, Germany
44.9km (27.9 miles) ⓘSengalenkopf, Schönau im Schwarzwald, Lörrach, Freiburg Region, Baden-Württemberg, Germany
48.2km (30.0 miles) ⓘOffenbach valley, Hornberg, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
References
 
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