 | | Book (volume) | | 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...the United States. North Carolina is a source of true emeralds and outstanding quartz crystals. New Hampshire...San Diego County, California, is arguably the most important gem-pegmatite district in North America....specimens is sometimes disastrous as well. While rose quartz crystals frequently occur on a stained matrix and |
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