Directory of principal U.S. gemstone producers in 1992 /|cprepared by Branch of Industrial Minerals
Series: Mineral industry surveys; Mineral industry surveys
Publisher: U.S. Department of the Interior, Bureau of Mines, Branch of Industrial Minerals
Published: 1993
Place of publication: Washington, D.C
Language: eng
Number of pages: 57
Subjects: Precious stone industry; Directories
Notes: Cover title.

"Annual Advance Summary Supplement."

"Prepared by the Branch of Industrial Minerals, July, 1993."

Also available online via Internet Archive.