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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Thomsonite-Ca from
Höchstberg (Schwarzley; Schwarzlay), Höchstberg, Kelberg, Vulkaneifel, Rhineland-Palatinate, Germany


Locality type:Quarry
Classification
Species:Thomsonite-Ca
Formula:NaCa2[Al5Si5O20] · 6H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Thomsonite-Ca data
Locality Data:Click here to view Höchstberg (Schwarzley; Schwarzlay), Höchstberg, Kelberg, Vulkaneifel, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:360747
Long-form Identifier:1:3:360747:3
GUID (UUID V4):0
Nearest other occurrences of Thomsonite-Ca
6.8km (4.2 miles) ⓘHochbermel, Bermel, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
7.5km (4.6 miles) ⓘBeilstein, Bereborn, Kelberg, Vulkaneifel, Rhineland-Palatinate, Germany
17.8km (11.1 miles) ⓘLöhley, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
18.5km (11.5 miles) ⓘMayener Feld, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
18.8km (11.7 miles) ⓘXenolith CS-008 (Bellbergite type-locality), Seekante, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
19.0km (11.8 miles) ⓘSeekante, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
19.5km (12.1 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
22.3km (13.9 miles) ⓘArensberg, Zilsdorf, Walsdorf, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
24.0km (14.9 miles) ⓘSchellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
26.1km (16.2 miles) ⓘGraulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
References
Hentschel, Gerhard (1987) Die Mineralien der Eifelvulkane (2nd ed.). Christian Weise Verlag. 177 pp.
 
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