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Bureau of Mines / Minerals yearbook area reports: domestic 1972
Year 1972, Volume 2 (1972)

Woodmansee, Walter C.
California,   pp. 111-144 PDF (3.4 MB)


Page 112

 MINERALS YEARBOOK, 1972112 
Table 1.—Mineral production in California 1 
 1971 1972 
 Mineral    Value    Value 
  Quantity (thousands) Quantity (thousands) 
Asbestos short tons~ 87,144 $7,806 90,967 $8,673 
Barite thousand short tons W W 4 34 
Boron minerals do---- 1,047 89,856 1,121 95,882 
Cement: 
   Portland do____ 9,117 169,921 9,086 182,308 
   Masonry do__.... (2) (2) W W 
Clays do_....._ 2,822 7,103 2,706 7,387 
Copper (recoverable content of ores, etc.) 
 short tons__ 515 536 598 612 
Gem stones  NA 205 NA 215 
Gold (recoverable content of ores, etc.) 
 troy ounces.._ 2,966 122 3,974 233 
Gypsum thousand short tons.... 1,352 3,884 1,525 4,965 
Lead (recoverable content of ores, etc.) 
 short tons__ 2,284 630 1,153 347 
Lime thousand short tons__ 630 10,846 608 13,059 
Magnesium compounds from sea-water bitterns 
  (partly estimated) short tons MgO 
 equivalent  152,918 16,836 175,654 18,421 
Mercury 76-pound flasks._ r 13,489 r 3,945 5,788 1,263 
Natural gas million cubic feet__ 612,629 199,717 487,278 179,318 
Natural gas liquids: 
   Natural gasoline and cycle products 
 thousand 42-gallon barrebs__ 11,045 35,545 8,468 27,664 
 LP gases do~._  6,755 16,482 5,847 15,962 
Peat thousand short tons__ - 12 W 29 620 
Petroleum (crude) 
 thousand 42-gallon barrels__ 358,484 975,076 347,022 940,430 
Pumice thousand short tons__ 699 1.179 731 1,507 
Salt do____ 1,887 21,142 1,621 14,860 
Sand and gravel do..___ 115,468 157,683 117,288 162,619 
Silver (recoverable content of ores, etc.) 
 thousand troy ounces__ 444 686 175 296 
 Stone              thousand short tons.. 43,336 86,255 37,213 65,811 
 Talc, pyrophylite, and soapstone __short tons.... 153,227 2,084 155,155
1,186 
 Zinc (recoverable content of ores. etc.) 
 short tons_ 3,003 967 1,202 427 
Value of itenis that cannot be disclosed: 
Barite, bromine, calcium-magnesium 
 chloride, carbon dioxide, clays (fuller's  - 
 earth and ball), coal (lignite), diatomite, 
 feldspar, iron ore, lithium minerals, 
 molybdenum, perlite, potassium salts, 
 rare-earth minerals, sodium carbonate, 
 sodium sulfate, tungsten, concentrates 
 and values indicated by symbol W XX 112,218 XX 107,266 
 Total xx r 1,920,723 XX 1,851,365 
 Total 1967 constant dollars XX 1,633,191 XX P 1,540,151 
 P Preliminary. r Revised. NA Not available. W Withheld to avoid disclosing
individual company confidential data; included with "Value of items that
cannot be disclosed." XX Not applicable. 
 1 Production as measured by mine shipments, sales, or marketable production
(including consumption by producers). 
 2Less than ' /2 unit. 
~ Excludes ball clay and fuller's earth; included with "Value of items that
cannot be disclosed." 
Table 2.—Value of mineral production in California, by county (Thousands)
County 1971 1972 Minerals produced in 1972 
in order o 
f value 
Alameda $27,232 $26,683 Sand and gravel, salt, stone, clays, petroleum. 
Alpine W W Silver, gold, sand and gravel, lead, stone, zinc, copper. 
Amador 2,665 5,149 Sand and gravel, stone, coal, clays. 
Butte 3,014 W Natural gas, sand and gravel. 
Calaveras 17,807 17,966 Cement, asbestos, stone, clays, sand and gravel.
Colusa 3,578 3,419 Natural gas, sand and gravel, stone. 
Contra Costa 14,330 10,760 Natural gas, stone, petroleum, lime, clays, sand
and 
    gravel, peat. 
Del Norte 319 649 Stone, sand and gravel, gold. 
El Dorado 2,672 2,596 Stone, lime, sand and gravel, talc. 
  See footnotes at end of table. 


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