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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Arsenopyrite from
Puits Giraudet, Nades mines, Nades, Vichy, Allier, Auvergne-Rhône-Alpes, France


Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Puits Giraudet, Nades mines, Nades, Vichy, Allier, Auvergne-Rhône-Alpes, France
Data Identifiers
Mindat Occurrence Record ID:218366
Long-form Identifier:1:3:218366:4
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
1.3km (0.8 miles) ⓘBois du Roi, Les Chaillats (Chaillat), Servant, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
2.6km (1.6 miles) ⓘÉperon quarry, Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
2.7km (1.7 miles) ⓘBeauvoir quarry, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
4.8km (3.0 miles) ⓘSte Barbe vein (Les Montmins), Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
4.9km (3.0 miles) ⓘLe Mazet vein no. 1, Le Mazet, Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
14.7km (9.1 miles) ⓘLes Méritis, Blot-l'Église, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
27.7km (17.2 miles) ⓘGrand Etang alluvial deposits, Andelot River watershed, Saint-Didier-la-Forêt, Vichy, Allier, Auvergne-Rhône-Alpes, France
34.1km (21.2 miles) ⓘPranal, Bromont-Lamothe, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
35.6km (22.1 miles) ⓘMontmalard, Bresnay, Moulins, Allier, Auvergne-Rhône-Alpes, France
38.3km (23.8 miles) ⓘLe Châtelet mine, Budelière, Aubusson, Creuse, Nouvelle-Aquitaine, France
References
J.-J. Périchaud: Les Minéraux d'Auvergne, Vol. 1, Clermont-Ferrand (1985)
Blondieau, Michel, Chollet, Pascal, Vessely, Yannick, Dal Bo, Fabrice, Hatert, Fréderic (2024) Identification de la miargyrite et de l'argentotétraédrite-(Fe) dans l'ancienne mine d'antimoine de Nades, Allier [dentification of miargyrite and argentotétraédrite-(Fe) in the former antimony mine of Nades, Allier]. Le Règne Minéral, 30 (177) 48-54
 
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