Manganese ores may accumulate in metamorphic rocks or as sedimentary deposits, frequently forming nodules on the sea floor (since the 1970s many schemes have been put forward to harvest deep-sea manganese nodules). The world’s main producers are Georgia, Ukraine, South Africa, Brazil, Gabon, and India. after processing, the manganese ore can be used in many [...]

Read more about stone crushers used for manganese ore process »