chrysoberyl, columbite, cuprite, franklinite, goethite, haematite, ilmenite, corundum, limonite, magnetite...occasional plant remains. Found in UK, France, Belgium, Ruhr, Silesia. Fig. 206 from the Ruhr, Germany...Germany, Italy, Austria, Greece, Spain, France, Belgium, Norway. They do occur in many other places, but... Called marble in the trade. Quarried at Sprimont, Belgium. Has nothing to do with igneous granite (P-...ore minerals are haematite, siderite, magnetite, goethite. Iron is frequently a by-product of other ores |