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
Horberig, Oberbergen, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany


Locality type:Hill
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 Horberig, Oberbergen, Vogtsburg im Kaiserstuhl, Breisgau-Hochschwarzwald, Freiburg Region, Baden-Württemberg, Germany
Data Identifiers
Mindat Occurrence Record ID:94266
Long-form Identifier:1:3:94266:3
GUID (UUID V4):0
Nearest other occurrences of Hornblende Root Name Group
34.2km (21.3 miles) ⓘTannenboden mine, Aitern, Lörrach, Freiburg Region, Baden-Württemberg, Germany
52.0km (32.3 miles) ⓘClara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
57.2km (35.5 miles) ⓘMaisach valley, Oppenau, Oberes Renchtal, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
58.0km (36.0 miles) ⓘSandstone quarries, Unteralpfen, Albbruck, Waldshut, Freiburg Region, Baden-Württemberg, Germany
82.1km (51.0 miles) ⓘHöwenegg Quarry (Hewenegg Quarry), Immendingen, Tuttlingen, Freiburg Region, Baden-Württemberg, Germany
References
 
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