Chopin Laboratoire de Geologie, UMR 8538 du CNRS, Ecole normale superieure, Paris, France Present address:...address: Centre de Geochimie de la Surface – EOST, 1 rue Blessig, 67083 Strasbourg Cedex, France (Benedicte...Praborna mine near Saint-Marcel, Val d’Aoste, Italy, and in the upper Maurienne Valley, France. They occur both...hematite and braunite (þ minor Mn-pyroxenoid and tirodite, rare tiragalloite; with ardennite or piemontite...Kienast, 1987); with hematite, Mn-pyroxenoid, tirodite and quartz. 11. Amphibolite facies, Gamsberg, |