Mine de Montgros, Pinols, Pinols, Haute-Loire, Auvergne, France
Ancient lead and zinc mine (mined between 1899 and 1912), located 4 km S of Pinols and around 11 km SW of Langeac.
Dumps and old buildings are on the left side of La Gourgueyre ravine, between Chanteloube and La Boriette hamlets.
French Lambert coordinates: X=6835, Y=3028.
Four veins are known, consisting of quartz, mylonites and breccias in silicified leptynites.
Age of mineralization: 400 +/- 70 My.
Périchaud J.-J. (1970) Les gisements métalliques du district à antimoine de Brioude-Massiac. PhD Thesis, Clermont-Ferrand.
Périchaud J.-J. (1986) Les Minéraux d'Auvergne, Vol. 2.
Meisser N., Thelin P., Chiappero P.-J., Maurel C. (1999) Laforêtite, AgInS2, a new mineral of the chalcopyrite group from the Montgros mine, Haute-Loire, France. European Journal of Mineralogy 11: 891-897.
Médard P., Pourtier G., Barrier D. (2006) A Montgros en Haute-Loire, ces minéraux qui cachent laforêtite. Le Cahier des Micromonteurs 94: 19-23
Mineral List
26 entries listed. 24 valid minerals. 1 type locality (valid mineral).
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