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Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)

Starch, Karl E.
Wyoming,   pp. 585-596 PDF (1.5 MB)


Page 585

Mineral 
Clays thousand short tona.. — Gemstones                   
2,966 
NA 
$48,369 
 200 
3,632 
NA 
$66,975 
 200 
3,471 
NA 
$75,096 
 200 
Gypsum — — — — thousand short tons_
— 
Pumice do~~ 
356 
2,571 
 ~ 
370 
 7 
2,995 W 
366 
3,100 
Ssndandgravel do___...Stone do....~. 
5,084 
' 2,434 
11,026 
' 7,585 
5,101 
~2,661 
11,240 
~8,037 
25,265 
5,013 
211,419 
15,634 
Combined value of cement, feldspar, iron ore, lime, phosphate rock, sodium
carbonate (natural), sand and gravel (industrial, 1919), stone (dimension
1977-78), and values mdicatedbysymbolW             
~otal                    
XX 
372,693 
- XX 
403,622 
XX 
484,727 
XX 
442,444 
XX 
493,069 
XX 
590,176 
 NA Not available. W Withheld to avoid disclosing company proprietary data
value included in "Combined value" figure. XX Not applicable. 
 1Production as measured by mine shipments, sales, or marketable production
(including consumption by producers). 
 ' Excludes industrial sand and gravel; value included in "Combined
value"
figure. 
 ' Excludes dimension stone; value included in "Combined value"
figure. 
  585The Mineral Industry of 
Wyoming 
This chapter has been prepared under a Memorandum of Understanding between
the Bureau of Mines, U.S. Department of the Interior, and the Wyoming Geological
Survey for collecting information on all nonfuel minerals. 
By Karl E. Starch1 
The value of nonfuel mineral production in Wyoming was $493 million in 1978
and $590 million in 1979. With about 3.5% of the total value of nonfuel minerals
produced nationwide, Wyoming ranked ninth among the States in nonfuel mineral
production in 1978 and 14th in 1979. Twelve nonfuel minerals were produced
in the State during 
the biennium, 11 nonmetalics, and 1 metal. Sodium carbonate (trona) was the
most important nonfuel mineral produced in terms of value, followed at considerable
distance by bentonite and iron ore. These three commodities combined accounted
for more than 90% of the value of all nonfuel minerals produced in Wyoming
in 1978-79. 
Table 1.—Nonfuel mineral production in Wyoming' 
 1977 1978 1979 
 Value Value Value 
Quantity (tho~nds) Quantity (thousands) Quantity (thousands) 


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