greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...clear to slightly blue topazes. However, San Diego County, California, is arguably the most important gem-pegmatite...Northampton, Massachusetts Joseph V. Smith, Chicago, Illinois Ralph Spencer, Rumford, Maine Descriptive mineralogy...Fallbrook, California Dan Behnke, Northbrook, Illinois Gerry Cinnamon, Unity, Maine Rock Currier, Arcadia |