Gem stones
By: by Gordon T. Austin
Contributors: United States. Bureau of Mines; United States. Branch of Industrial Minerals
Publisher: U.S. Department of the Interior, Bureau of Mines
Published: 1991
Place of publication: Washington, D.C
Language: eng
Number of pages: 21
Subjects: Precious stone industry; Statistics; Periodicals; Precious stones; Artificial Precious stones
Other titles: Gem stones : annual report 1990; Gem stones--1990
Notes: Cover title.

"September 1991."

Domestic production survey data prepared by William Field.

Includes tables.

Also available online via Internet Archive.
Table of contents: title: Domestic data coverage -- -- Background.; title: Definitions, grades, and specifications --; title: Products for trade and industry --; title: Industry structure --; title: Geology-resources --; title: Technology : synthetic gems ; enhancement of gem stones ; mining ; processing -- -- Annual review.; title: Production --; title: Consumption and uses --; title: Prices --; title: Foreign trade --; title: World review : Angola ; Australia ; Botswana ; Canada ; China ; Cook Islands ; Guinea ; Hong Kong ; India ; Indonesia ; Malaysia ; Sierra Leone ; South Africa, Republic of ; Sri Lanka ; Tanzania ; U.S.S.R. ; Vietnam ; Zaire ; Zambia ; Zimbabwe --; title: Current research --; title: Outlook.