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Gems.

Authors
Austin-GT
Source
Min Eng 1992 Jun; 44(6):560
NIOSHTIC No.
10011600
Abstract
In 1991, the value of natural gemstones, fresh water pearls, salt water pearls, coral, and synthetic and simulant gemstones from deposits in the United States was $128.2 million, according to the U.S. Bureau of Mines. The value of natural gem material produced was $109 million, an increase of 106 pct compared to 1990. The value of synthetic and simulant production was $19.2 million, essentially unchanged from 1990. U.S. production accounted for about 2 pct of the $2.9 billion of estimated U.S. consumption of gems and gemstones.
Keywords
Stone-processing; Stone-products
CODEN
MIENAB
Publication Date
19920601
Document Type
OP; Journal Article
Fiscal Year
1992
NTIS Accession No.
NTIS Price
Identifying No.
OP 250-92
Issue of Publication
6
ISSN
0026-5187
NIOSH Division
WO
Source Name
Mining Engineering
State
DC
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