Sٍedimentary manganes and iron ore deposits - SlideShareNov 23, 2015 . Topic 3: Sedimentary Manganese and Iron Ore Deposits Hassan Z. . of ferric iron (Fe3+ Principal iron-bearing minerals From Boggs, Principles of ... Gangue minerals include quartz, dolomite, calcite, barite, gypsum, and.gangue of quartz and iron and manganese bearing dolomite,The Quartz Page: OccurrenceSep 22, 2011 . . pure quartz and only superficially stained by iron and manganese oxides. . However, crystal-bearing pockets may be associated with them, as . Common gangue minerals are quartz, calcite and dolomite. .. The crystals are often stained by inclusions of iron compounds and are often milky and dull.
gangue of quartz and iron and manganese bearing dolomite