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


Locality type:Quarry
Classification
Species:Sillimanite
Formula:Al2(SiO4)O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sillimanite data
Locality Data:Click here to view Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:76550
Long-form Identifier:1:3:76550:5
GUID (UUID V4):0
Nearest other occurrences of Sillimanite
10.2km (6.3 miles) ⓘWartgesberg, Strohn, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
13.9km (8.7 miles) ⓘRadersberg quarry, Dreis-Brück, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
15.0km (9.3 miles) ⓘAuf Dickel (incl. Nonnental), Rockeskyll volcanic complex, Rockeskyll, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
20.7km (12.9 miles) ⓘBocksberg, Müllenbach, Adenau, Ahrweiler, Rhineland-Palatinate, Germany
25.1km (15.6 miles) ⓘHochbermel, Bermel, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
37.8km (23.5 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
40.1km (24.9 miles) ⓘKappiger Ley (Kappiger Lay), Wehr, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
41.5km (25.8 miles) ⓘRothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
41.8km (26.0 miles) ⓘThelenberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
42.1km (26.2 miles) ⓘBasalt quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
References
Schüller, Wilhelm, Betz, Volker (1986) Die Mineralien vom Emmelberg. Lapis, 11 (12) 11-25
 
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