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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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Sanidine from
Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany


07263970017866506293138.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
00725910017271985939788.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
03648440017271985956178.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
00674560017271985974734.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
01229940017366210667721.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
00725910017271985939788.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
03648440017271985956178.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
00674560017271985974734.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
05149920017271926449054.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
00725910017271985939788.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
03648440017271985956178.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
00674560017271985974734.jpg
Sanidine

Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
Locality type:Quarry
Classification
Species:Sanidine
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Pseudobrookite25
Jeremejevite10
Pyroxene Group8
Topaz7
Mullite5
Amphibole Supergroup4
Sellaite4
Ferri-obertiite4
Magnetite3
Rutile3
Corundum3
Hematite3
Fluorapatite2
Enstatite2
Tridymite1
Chabazite-Ca1
Quartz1
Titanite1
Cristobalite1
Phlogopite1
Calcite1
Cordierite1
Augite1
Haüyne1
Sodalite1
Muscovite1
Fayalite1
Data
Mineral Data:Click here to view Sanidine data
Locality Data:Click here to view Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
Photo GalleryView Gallery (12 photos)
Data Identifiers
Mindat Occurrence Record ID:76548
Long-form Identifier:1:3:76548:0
GUID (UUID V4):0
Nearest other occurrences of Sanidine
1.2km (0.7 miles) ⓘLöhley, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
2.9km (1.8 miles) ⓘAltburg, Schalkenmehren, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
4.8km (3.0 miles) ⓘKahlenberg, Oberstadtfeld, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
7.7km (4.8 miles) ⓘMosenberg, Bettenfeld, Wittlich-Land, Bernkastel-Wittlich, Rhineland-Palatinate, Germany
10.2km (6.3 miles) ⓘWartgesberg, Strohn, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
10.6km (6.6 miles) ⓘHangelberg quarry, Hinterweiler, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
12.7km (7.9 miles) ⓘMühlenberg (Krümmel), Hohenfels-Essingen, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
12.8km (8.0 miles) ⓘHummerich, Utzerath, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
13.0km (8.1 miles) ⓘDreiser Weiher, Dreis, Dreis-Brück, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
13.9km (8.6 miles) ⓘKahlenberg, Oberehe-Stroheich, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
References
Schäfer, H. (1979) Die Mineralien der Einschlüsse und Auswürflinge in den Schlacken des Emmelberges bei Übersdorf/Eifel. Der Aufschluss, 30 (9). 273-282
Blaß, G.; Kruijen, F. (2015) Die Neuigkeiten aus der Vulkaneifel (II/2015). Mineralien-Welt, 26 (5). 80-90
 
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