Le Treuil Mine, Saint-Etienne, Loire, Rhône-Alpes, France
One of the biggest old coalmine of St Etienne, first worked in a quarry then underground up to 600 m depth. It was located between the Crêt-de-Roc hill and the Jules Janin avenue but nothing remain today (shafts closed in 1964). During the coal operation, only three layers mineralized with ankerite-siderite and some sulphides were found between sandstones and coal layers. The ore from these layers was send to the steel mills of Terrenoire but some specimens are now in the collections of the St Etienne School of Mines (Ecole des Mines de St Etienne).
8 entries listed. 6 valid minerals.
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Fuchs E., Launay L. (1893) - Traité des gîtes minéraux et métallifères, recherche, étude et conditions d'exploitation des minéraux utiles, description des principales mines connues, usages et statistiques des métaux- Volume 1, p. 766
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Locality Updated: Stráž, Slovenská Ľupča, Banská Bystrica Co., Banská Bystrica Region, SlovakiaFrom Martin Stevko, 7th Dec 2013 03:42:41