Ternary diagrams of the quartz-feldspar content of pegmatites in Colorado
By: by James J. Norton.
Series: Contributions to general geology; Geological Survey bulletin -- 1241-D
Publisher: U.S. Govt. Print. Off.
Published: 1966
Place of publication: Washington
Language: eng
Number of pages: 16
Subjects: Pegmatites -- Colorado -- Composition.; Geochemistry -- Colorado -- Gunnison County.; Geochemistry -- Colorado -- Larimer County.; Beryl -- Colorado.
Description: A study of the composition of pegmatites in the Quartz Creek district, Gunnison County, and in the Crystal Mountain district, Larimer County, Colo.
Notes: Includes diagrams on one folded plate in pocket.

Includes bibliographical references (p. 16).