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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Hornblende Root Name Group from
Altburg, Schalkenmehren, Daun, Vulkaneifel, Rhineland-Palatinate, Germany


Classification
Species:'Hornblende Root Name Group' (not an IMA approved species)
Formula:◻Ca2(C42+C3+)(AlSi7O22)W2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hornblende Root Name Group data
Locality Data:Click here to view Altburg, Schalkenmehren, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:85100
Long-form Identifier:1:3:85100:6
GUID (UUID V4):0
Nearest other occurrences of Hornblende Root Name Group
2.3km (1.4 miles) ⓘLöhley, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
2.9km (1.8 miles) ⓘEmmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
8.7km (5.4 miles) ⓘWartgesberg, Strohn, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
9.0km (5.6 miles) ⓘMeerfeld Maar, Meerfeld, Wittlich-Land, Bernkastel-Wittlich, Rhineland-Palatinate, Germany
9.8km (6.1 miles) ⓘMosenberg, Bettenfeld, Wittlich-Land, Bernkastel-Wittlich, Rhineland-Palatinate, Germany
10.1km (6.3 miles) ⓘHummerich, Utzerath, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
12.5km (7.8 miles) ⓘDreiser Weiher, Dreis, Dreis-Brück, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
13.7km (8.5 miles) ⓘKahlenberg, Oberehe-Stroheich, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
15.7km (9.8 miles) ⓘAuf Dickel (incl. Nonnental), Rockeskyll volcanic complex, Rockeskyll, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
17.7km (11.0 miles) ⓘGraulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
References
 
and/or  
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