the skarn ores of Ställberg and Bastkärn (Central Sweden), the small grain size of the magnetite has been...et al. 1972a), Långban in Sweden (Magnusson 1960) and Sjögruvan in Sweden (Holtstam & Mansfeld 2001)...pyroxmangite – rhodonite, Mn-grunerite – Mn-cummingtonite (dannemorite), almandine – spessartine, Fe-rhodochrosite...1984), Väster Silvberg, Sweden (Geijer & Magnusson 1944), Hällefors, Sweden (Zakrzewski & Nugteren 1984)...1984), and Hilläng and Dannemora, Sweden (Grip 1978). Small amounts of graphite in some of these ores |