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Bureau of Mines / Minerals yearbook: Metals and minerals 1978-79
Year 1978-79, Volume 1 (1978-1979)

Clifton, Robert A.
Talc and pyrophyllite,   pp. 899-905 ff. PDF (743.9 KB)


Page 899

  899Talc and Pyrophyllite 
By Robert A. Clifton1 
 Increasing demand for talc and pyrophyllite in the domestic market led to
an increase in the combined total domestic production of these commodities
for 1979. Production of talc set a new record high in 1978, and the 1979
production was approximately the same. Pyrophyllite production increased
both years. The value of crude talc and pyrophyllite produced increased significantly
during the 2-year period. 
 Table 1 shows the increases in total sales of crude and processed talc and
pyrophyllite in quantity and value. Apparent domestic consumption increased
during both years. Exports were down in 1978 and up in 1979 
from those of previous years, but 1979 tonnages were below those of 1977.
The value of exported talc rose for both 1978-79. 
 Continental Minerals Corp. of Las Vegas, 
Nev., began production of talc from its 
newly optioned property in Death Valley, 
Calif., in 1978. The acquisition of the former 
Grantham property included mills in Dunn 
Siding and Los Angeles, Calif. 
 Legislation and Government Pro. grams..—In 1978, the National
Institute
of Occupational Safety and Health (NIOSH) contracted with Stanford Research
Institute (SRI) to draft a document for later publica 
Table 1.—Salient talc and pyrophyllite statistics 
(Thousand short tons and thousand dollars) 
1975 
1976 
1977 
1978 
1979 
United States: 
Mine production, crude: 
Talc                                      
Pyrophyllite                                
 Total                                    
Value: 
873 
92 
w w 
1,099 
106 
1,268 
116 
1,268 
185 
965 
1,092 
1,205 
1,384 
1,453 
Talc                                   
Pyrophyllite                             
Total                                 
Sold by producers, crude and processed: 
Talc                                      
Pyrophyllite                                
 Total                                    
Value: 
$7,454 
1,475 
$9,542 
360 
$12,524 
561 
$14,956 
811 
$19,365 
998 
8,929 
9,902 
13,085 
15,767 
20,364 
845 
86 
794 
107 
996 
118 
1,155 
116 
1,119 
195 
931 
901 
1,114 
1,271 
1,314 
Talc                                  Pyrophyllite                      
Total                                 
Exports1                                      
 Value                                     
Importsforconsumption                          Value                    
 Apparentconsumption..                          world: production       
$16,496 
 1,379 
$33,014 
 934 
$50,647 
 1,708 
$68,781 
2,804 
$80,529 
4,413 
17,875 
158 
$6,338 
23 
$1,471 
796 
5,403 
33,948 
212 
$9,034 
20 
$1,861 
709 
r58()6 
52,355 
322 
$9,166 
22 
$2,094 
814 
r62~() 
71,585 
267 
$12,359 
19 
$1,946 
1,023 
6,475 
84,942 
316 
$15,210 
22 
$2,822 
1,020 
6,850 
Tn~is~i. w withheld to avoid disclosing company proprietary data. 
1Excludes powders—talcum (in package), face, and compact. 


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