University of Wisconsin Digital Collections
Link to University of Wisconsin Digital Collections
Link to University of Wisconsin Digital Collections
Ecology and Natural Resources Collection

Page View

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

Statistical summary,   pp. 1-39 ff. PDF (3.6 MB)


Page 16

Table 6.—Mineral production 1 in the United States, by State—Continued
s—s 
Mineral 
* 
 1969 1970 
 . 
Quantity Value Quantity Value 
 (thouaanda) (thousands) 
1971 
1972 
, 
Quantity Value (thousands) 
Quantity Value (thousands) 
MAINE—Continued 
Value of items that cannot be disclosed: Beryllium (1969—70), cement,
clays, feldspar (1969—70), and values indicated by symbolW        
Total                                   
XX 
$10,273 
XX 
$10,778 
XX 
$8,450 
XX 
$8,867 
* XX 
20,188 
XX 
23,780 
XX 
~1,898 
XX 
22,922 
MARYLAND 
Clays' thousandshorttons... 1,152 1,369 1,129 1,483 1,027 1,558 1,104 2,121
Coal (bituminous) do.... 1,868 5,261 1,615 8,083 1,644 10,274 . 1,640 8,961
Gem stones  NA 3 NA 3 NA 8 NA 8 ~ 
Natural gas million cubic feet  978 248 813 202 214 ' 43 244 51 
Peat - - thousand short tons.  4 78 4 47 3 39 3 29 ~ 
Sandandgravel .do...~.. 14,280 21,226 12,951 20,434 12,842 23,201 12,594
26,557 ~ 
Stone do..  15,067  30,504  16,015  32,783  15,912  34,770  19,431  41,973
 ~ 
Value of items that cannot be disclosed: Cement, selected 
 clays, diatomite (1969), lIme, greensand marl, potassium 
salts (1968—70), and talc and soapstone               XX          
    24,794               XX               25,231               XX       
       29,527               XX 
 35,801 
 Total XX   83,483 XX 88,216 XX ' 99,420 XX 115,501 
 MASSACHUSETTS 8 
Clays thousand short tons.  832 624 284 582 186 377 219 416 
Gemstones  NA 2 NA 2 NA ' 5 NA 5 ~ 
Lime thousand short tons.  199 3,718 W W W W W W 
Peat. - -  do. - -  W W W W 2 32 W W 
Sand and gravel do..... 19,456 22,950 17,925 22,244 17,343 23,058 18,883
25,655 
Stone do.... 7,847 22,521 8,136 24,349 7,816 28,582 7,990 23,500 
Value of items that cannot be disclosed: Nonmetals and values 
 Indicated by symbol W  XX 28 XX 3,183 XX r 3,145 XX 2,852 
Total                                   
XX 49,843 XX 50,360 XX 50,199 XX 52,428 
MICHIGAN 
Cement: 
 Portland thousand short tons.. 5,710 98,425 5,605 101,019 6,108 104,665
5,901 111,410 
 Masonry  do.... 266 5,473 218 5,258 239 5,872 250 5,959 
Clays ~ 2,667 3,037 2,480 2,887 2,458 3,866 2,514 3,715 
Copper (recoverable content of ores, etc.~ short tons.. 75,226 71,516 67,548
77,945 56,005 58,245 67,260 68,874 
Gemstones.  NA W NA W NA 8 NA 8 
Gypsum thousand short tons.... 1,827 5,384 1,812 5,061 1,433 5,585 1,650
7,267 
Iron ore (usable) thousand long tons, gross weight.. 14,058 169,756 13,100
168,958 11,888 159,854 12,692 177,461 
Lime thousand short tons.. 1,589 20,872 1,538 21,355 1,444 20,549 1,509 22,753
Magnesium compounds from sea water and brine (except for 


Go up to Top of Page