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January-February 2017

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Hydrothermal Quartz from McCurtain County, Oklahoma

The barite rose, the State Rock, from Cleveland County (London 2008), and hourglass gypsum, the State Crystal, from the Salt Plains Wildlife Refuge, Alfalfa County (Rohn 2007), are so abundant and widespread in the mineral market that they are two of the most widely recognized symbols of Oklahoma. Beyond these occurrences, however, locations for minerals worthy of collections are few in the state. Quartz crystals from McCurtain County, however, constitute a little-known buried treasure. In their quality of luster and diversity of habits, they are on a par with the best quartz specimens found anywhere in the world.

Dr. David London, a native of Oklahoma, is a Stubbman-Drace Presidential Professor, Norman R. Gelphman Professor of Geology, and director of the Electron Microprobe Laboratory at the University of Oklahoma.

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