Table 2.--Clays sold or used by producers in the United States1/ in 1971, by kind and use
                                                                (Metric tons)
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                                                                         Fire clay
                                           Ball            Common clay  (refractory Fuller's           Undistrib-
                   Use                     clay Bentonite    and shale      only)      earth    Kaolin   uted2/            Total
  ------------------------------------------------------------------------------------------------------------------------------
  Adhesives----------------------------      --        --           --           --     (3/)    49,289         --       4/49,289
  Alum, aluminum sulfate, and other
   chemicals---------------------------      --      (5/)          105       17,418     (5/)   117,910      6,512        141,945
  Animal feed--------------------------      --    81,963           --           --      220    23,414         --        105,596
  Animal litter------------------------      --      (3/)           --           --  255,417        --         --      4/255,417
  Building brick-----------------------      --      (3/)   17,794,270           --       --        --         --   4/17,794,270
  Catalysts (oil refining)-------------    (5/)      (5/)           --           --     (5/)    50,188      4,570         54,759
  Cement, portland---------------------      --      (3/)   10,543,209           --       --    62,399         --   4/10,605,608
  Drain tile---------------------------      --        --      602,705           --       --        --         --        602,705
  Drilling mud-------------------------    (3/)   464,728           --           --   64,453      (3/)         --      4/529,181
  Enamel, glazes, and glass------------      --        --           --           --       --     8,541         --          8,541
  Fertilizers--------------------------      --     2,424           --           --   46,495    52,990         --        101,910
  Fiberglass---------------------------      --        --           --           --       --   113,715         --        113,715
  Filtering, clarifying, and decolor-
   izing-------------------------------      --   111,473           --           --   43,306        --         --        154,779
  Firebrick and block------------------    (5/)      (5/)           --    2,137,208       --   391,571    100,550      2,629,329
  Floor absorbents---------------------      --      (3/)           --           --  321,568        --         --      4/321,568
  Floor, wall, and quarry tile--------- 123,776        --       75,186         (3/)       --   253,516         --      4/452,478
  Flower pots--------------------------      --        --       54,224           --       --        --         --         54,224
  Flue linings-------------------------      --        --       52,610           --       --        --         --         52,610
  Foundry sand-------------------------      --   683,712           --      407,065       --        --         --      1,090,777
  Gypsum products----------------------      --      (5/)           --           --     (5/)    10,821        544         11,420
  Insecticides and fungicides----------    (3/)     4,139           --           --  163,991    13,587         --      4/181,717
  Lightweight aggregate----------------      --        --    9,278,007           --     (3/)        --         --    4/9,278,007
  Mortar and cement, refractory--------    (3/)        --           --       53,062       --        --         --       4/53,062
  Oil well sealing---------------------      --     4,755           --           --       --     1,165         --          5,920
  Paint--------------------------------      --      (5/)         (5/)           --     (5/)   111,075      3,778        114,853
  Paper coating------------------------      --        --           --           --     (3/) 1,243,359         --    4/1,243,359
  Paper filling------------------------    (5/)      (5/)           --           --       --   746,281     13,118        759,399
  Pelletizing (iron ore)---------------      --   702,589           --           --       --        --         --        702,589
  Plastics-----------------------------      --      (5/)         (5/)           --       --    71,940        275         72,215
  Roadstone----------------------------      --        --       72,389           --       --        --         --         72,389
  Roofing tile-------------------------      --        --       41,346           --       --        --         --         41,346
  Rubber-------------------------------    (3/)        --           --           --       --   328,237         --      4/328,237
  Sewer pipe, vitrified----------------      --        --    1,964,286        4,536       --        --         --      1,968,822
  Structural tile----------------------      --        --       73,570           --       --        --         --         73,570
  Water sealing and waterproofing------      --   109,494           --           --       --        --         --        109,494
  Whiteware---------------------------- 294,445        --           --           --       --   195,819         --        490,264
  Other:
    Filler-----------------------------    (5/)       878         (5/)           --       --    18,506      2,938         22,322
    Heavy clay products----------------      --        --       83,144           --       --        --         --         83,144
    Pottery----------------------------  15,253        --           --       14,353       --    16,428         --         46,034
    Refractory-------------------------  32,042        --           --      115,383       --       474         --        147,899
    Miscellaneous----------------------   8,166     3,919           --       12,656    1,395    42,190         --         68,326
    Undistributed2/--------------------  73,009    50,189        2,498           --   22,963        --         --             --
  Exports------------------------------    (5/)   198,072           --         (3/)     (5/)   509,268     16,319      4/723,660
                                       -----------------------------------------------------------------------------------------
        Total6/------------------------ 546,691 2,418,337   40,637,550    2,761,681  919,808 4,432,681         --     51,716,747
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    1/Includes Puerto Rico.
    2/Total of clays indicated by footnote 5.
    3/Withheld to avoid disclosing company propietary date; included with "Miscellaneous."
    4/Incomplete figure; difference included with "Miscellaneous."
    5/Withheld to avoid disclosing company propietary data; included with "Undistributed."
    6/Data may not add to total shown because of independent rounding.