The gem minerals of Oregon
By: [by] Dr. H.C. Dake ...
Series: Oregon. Dept. of Geology and Mineral Industries. Bulletin -- no. 7.; Bulletin (Oregon. Dept. of Geology and Mineral Industries) -- 7.
Published: 1938
Place of publication: [Portland
Language: eng
Number of pages: 16
Subjects: Precious stones -- Oregon.
Notes: Photoprinted.