Directory of principal U.S. gemstone producers in 1991
By: U.S. Department of the Interior, Bureau of Mines
Contributors: United States. Branch of Industrial Minerals
Series: Mineral industry surveys; Mineral industry surveys
Publisher: U.S. Department of the Interior, Bureau of Mines
Published: 1992
Place of publication: Washington, D.C
Language: eng
Number of pages: 49
Subjects: Precious stone industry; Directories
Other titles: Directory of principal United States gemstone producers in 1991
Notes: "Annual advance summary supplement."

"Prepared by the Branch of Industrial Materials, April 1, 1992."

Also available online via Internet Archive.