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Bureau of Mines / Minerals yearbook: Metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)

Sondermayer, Roman V.
Thorium,   pp. 1201-1208 PDF (856.3 KB)


Page 1203

Table 2.—US. foreign trade in thorium and thorium-bearing materials
(Quantity in pounds unless otherwise specified) 
1970 
1971 
1972 
'  
Principal sources and destinations, 1972 
Quantity 
Value 
-~ 
Quantity 
Value 
Quantity 
Value 
EXPORTS 
Ore and concentrate (ThO2 content) - -- 
Metals and alloys'                
Compounds'                     
iMPORTS 
81 
5,503 
4,045,549 
$1,296 
86,021 
24,579,293 
- - 
65,592 
6,021,148 
- - 
$943,930 
38,498,069 
- - 
16,624 
6,714,148 
- - 
$291,048 
46,614,501 
Italy 14,119; Canada 1,695; Japan 554. Canada 4,170,598; United Kingdom 
2,521,285. 
Ore and concentrate: 
Monazite (short tons)         ThO, content'           
Waste and scrap                
Compounds: 
Nitrate                     
Oxide                      
Oxide equivalent, in gas mantles ~2~_ 
Other                    
3,448 
413,800 
5 
10 
4,100 
252 
427,411 
382 
280 
409,110 
23,253 
3,373 
404,800 
1,100 
2,481 
5,900 
227 
383,733 
1,891 
8,692 
618,616 
28,195 
894 
107,300 
15 
4,502 
317 
5,804 
151 
$88,767 
285 
15,612 
1,833 
539,558 
22,811 
All from Malaysia. All from Canada. 
, 
All from France. 
France 290. 
United Kingdom 2,795; Austria 1,000; Malta 692; Italy 600; West Germany 
464. 
Switzerland 118. 
' Estimate. 
' Includes uranium; thorium and uranium are undifferentiated in official
statistics. 
Based on manufacture of 1,000 gas mantles per pound ThO,. 
0 


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