Ternary diagrams of the quartz-feldspar content of pegmatites in Colorado : a study of the composition of pegmatites in the Quartz Creek district, Gunnison County, and in the Crystal Mountain district, Larimer County, Colo. / by James J. Norton.
- Physical Description: 1 online resource (iii, 16 pages, 1 page of plates) : illustration.
- Publisher: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1966.
- Distributor: Washington : United States Government Printing Office
|General Note:|| Title from title screen (viewed September 15, 2014).
|Bibliography, etc. Note:|| Includes bibliographical references (page 16).
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- Geological Survey bulletin ; 1241-D
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