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  1. Grayson

    ... slate . The color of the specimen suggests significant ferromagnesian and possibly graphite mineral presence. Owning to the ...

    Raven Mueller - 2015-08-12

  2. Harvest Gold

    ... of slide area was originally occupied by feldspar s and ferromagnesian minerals or lithic varieties composed of these minerals. These ...

    Raven Mueller - 2015-07-22