Search results with tag "Gem minerals"

GEMS AND GEM MINERALS OF NORTH CAROLINA*

found incidentally in a search for other minerals, or in the com-mercial mining of these, such as gold, corundum, mica, and monazite. There have been, however, certain localities that, after the discovery of the gems, have been developed and worked for the gem material. The variety of gem minerals found in North Carolina is probably

  North, Mineral, And gem minerals of north, Gem minerals