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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Muscovite from
Sioulot stream alluvial deposits, Olby, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France


Locality type:Alluvials
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Sioulot stream alluvial deposits, Olby, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
Data Identifiers
Mindat Occurrence Record ID:608281
Long-form Identifier:1:3:608281:9
GUID (UUID V4):0
Nearest other occurrences of Muscovite
10.9km (6.8 miles) ⓘFontsalade stream alluvial deposits, La Gratade, Rochefort-Montagne, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
12.4km (7.7 miles) ⓘFondain stream alluvial deposits, Laqueuille, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
35.5km (22.1 miles) ⓘLa Vialolle, Labessette, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
44.1km (27.4 miles) ⓘLes Farges Mine, Ussel, Ussel, Corrèze, Nouvelle-Aquitaine, France
46.1km (28.6 miles) ⓘNades mines, Nades, Vichy, Allier, Auvergne-Rhône-Alpes, France
46.2km (28.7 miles) ⓘBois du Roi, Les Chaillats (Chaillat), Servant, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
48.3km (30.0 miles) ⓘMine de l'Eperon (La Bosse), Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
48.5km (30.1 miles) ⓘBeauvoir quarry, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
49.6km (30.8 miles) ⓘSuquet quarry, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
50.8km (31.5 miles) ⓘLe Mazet vein no. 1, Le Mazet, Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
References
Périnet, François (n.d.) Personal communication.
 
and/or  
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