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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Marcasite from
Bois du Roi, Les Chaillats (Chaillat), Servant, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Comments:"Mille-feuilles" marcasite (pseudomorph after pyrrhotite)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Bois du Roi, Les Chaillats (Chaillat), Servant, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
Data Identifiers
Mindat Occurrence Record ID:220700
Long-form Identifier:1:3:220700:1
GUID (UUID V4):0
Nearest other occurrences of Marcasite
1.3km (0.8 miles) ⓘNades mines, Nades, Vichy, Allier, Auvergne-Rhône-Alpes, France
2.3km (1.4 miles) ⓘBeauvoir quarry, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
4.6km (2.9 miles) ⓘSte Barbe vein (Les Montmins), Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
21.8km (13.6 miles) ⓘBaryte vein, Vitrac, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
34.2km (21.2 miles) ⓘPranal, Bromont-Lamothe, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
37.0km (23.0 miles) ⓘLe Châtelet mine, Budelière, Aubusson, Creuse, Nouvelle-Aquitaine, France
44.5km (27.6 miles) ⓘLa Peyrouse mine, Mérinchal, Aubusson, Creuse, Nouvelle-Aquitaine, France
48.2km (29.9 miles) ⓘBancherelle Mine, Ris, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
58.7km (36.4 miles) ⓘLiauzun, Olloix, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
62.1km (38.6 miles) ⓘRamillard, La Chabanne, Vichy, Allier, Auvergne-Rhône-Alpes, France
References
G. Aubert : "Les coupoles granitiques de Montebras et d'Echassières (Massif Central Français) et la genèse de leur minéralisations (BRGM, 1969)
 
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