0 
1945 
 1950 955 1960 1965 1970 
 Figure 1 —Total value of mineral production in Indiana. 296      
 MINERALS YEARBOOK, 1967 
  Table l.—Mineral production in Indiana 1 
 1966 1967 
 Mineral ————— —— 
 Quantity Value Quantity Value 
 (thousands) (thousands) 
Abrasives (whetstones) short tons  5  $15  5  $16 
Cement, portland thousand 376-pound barrels  15,305 49,826 15,924 53,123

Clays thousand short tons  1,491  2,196  1,489  2,126 
Coal (bituminous) do.  17,326  67,857  18,772  73,419 
Natural gas million cubic feet  215  51  198  46 
Peat shorttons  38,111  456  42,962  441 
Petroleum (crude) thousand 42-gallon barrels.  10,617  31,850  10,081  30,041

Sand and gravel thousand short tons  24,992  23,542  26,265  25,588 
Stone do~ 24,323 42,474 26,977 46,725 
Value of items that cannot be disclosed: Masonry cement, 
 gypsum, and lime  XX 11,743 XX 13,396 
 Total — XX 230,010 XX 244,921 
 Total 1957—59 constant dollars  XX 230,890 XX p242,760 
 
 
i Preliminary. XX Not applicable. 
 1 Production as measured by mine shipments, sales, or marketable production(in~5udhig
consumption by producers).