American gems and precious stones
By: by George F. Kunz
Publisher: Govt. print. off.
Published: 1883
Place of publication: Washington
Language: eng
Number of pages: 499
Subjects: Precious stones
Notes: At head of title:  United States geological survey.

Extract from "The Mineral resources of the United States," by Albert Williams, jr., chief of the Division of mining statistics and technology, 1883