Table 4.--Clays sold or used by producers in the United States1/ in 1972, by kind and use
                                                                 (Metric tons)
  ----------------------------------------------------------------------------------------------------------------------------
                                                                        Fire clay
                                          Ball            Common clay (refractory  Fuller's            Undistrib-
                  Use                     clay  Bentonite  and shale       only)      earth    Kaolin    uted2/        Total3/
  ----------------------------------------------------------------------------------------------------------------------------
  Adhesives--------------------------       --       (4/)          --          --      (4/)    66,603          --     5/66,603
  Alum, aluminum sulfate and other
   chemicals-------------------------       --       (6/)          --        (6/)      (6/)   100,702      22,192      122,895
  Animal feed------------------------       --     91,254          --          --      (4/)     8,575          --     5/99,828
  Animal litter----------------------       --      3,340          --          --   216,746        --          --      220,086
  Asphalt emulsion and
   tiles-----------------------------     (6/)       (6/)          --          --        --        --      10,079       10,079
  Brakes and clutches----------------       --         --         793          --        --        --          --          793
  Building brick:
   Common----------------------------       --       (4/)   3,273,034          --        --      (4/)          --  5/3,273,034
   Face------------------------------       --       (4/)  15,036,873      27,216        --   258,791          -- 5/15,322,879
  Catalysts (oil refining)-----------      136       (6/)          --          --      (6/)    61,680       3,090       64,905
  Cement, portland-------------------       --       (4/)  11,376,057          --      (4/)    68,672          -- 5/11,444,729
  Ceramic--hobby---------------------       --         --       1,108          --        --         5          --        1,112
  China and dinnerware---------------     (4/)         --          --          --        --    46,086          --     5/46,086
  Crockery and other
   earthenware-----------------------     (6/)         --       4,643        (6/)        --    18,139       8,604       31,386
  Drilling mud-----------------------     (4/)    487,482         181          --    53,182      (4/)          --    5/540,846
  Electrical porcelain---------------     (4/)         --          --          --        --     5,387          --      5/5,387
  Fertilizers------------------------       --      2,366        (4/)          --    38,107    68,918          --    5/109,391
  Fiberglass-------------------------       --         --          --          --        --   139,514          --      139,514
  Filtering, clarifying, and
   decolorizing:
    Animal oils----------------------       --       (6/)          --          --      (6/)        --      28,796       28,796
    Mineral oils---------------------       --     46,484          --          --    34,459        --          --       80,943
    Vegetable oils-------------------       --     67,636          --          --      (4/)        --          --     5/67,636
  Firebrick, block, and shapes-------   37,059      5,984          --   2,024,759        --   306,036          --    2,373,838
  Floor absorbents-------------------       --       (4/)          --          --   311,793        --          --    5/311,793
  Flower pots------------------------       --         --      43,634          --        --        --          --       43,634
  Flue linings-----------------------       --         --     131,072        (6/)        --      (6/)      56,631      187,703
  Foundry sand-----------------------       --    645,493          --     248,478        --      (4/)          --    5/893,971
  Glazes, glass, and enamels---------    1,411       (4/)          --        (4/)        --    24,608          --     5/26,019
  Grogs and crudes, refractory-------       --         --          --     221,385        --   139,290          --      360,675
  Gypsum products--------------------       --         --          --          --        --    14,607          --       14,607
  High-alumina (minimum 50% Al2O3)
   refractories----------------------     (4/)       (4/)          --     202,744        --      (4/)          --    5/202,744
  Kiln furniture---------------------     (6/)       (6/)          --        (6/)        --        --      20,451       20,451
  Lightweight aggregate--------------       --         --   9,752,436          --        --        --          --    9,752,436
  Linoleum---------------------------       --         --         793          --        --      (4/)          --        5/793
  Medical, pharmaceutical, cosmetic--       --         --          --          --      (6/)      (6/)       2,480        2,480
  Mortar, cement, refractory---------     (6/)         --        (6/)     233,648      (6/)      (6/)      53,145      286,793
  Paint------------------------------       --       (6/)          87          --      (6/)   128,362       3,102      131,551
  Paper coating----------------------       --       (4/)          --          --      (4/) 1,300,827          --  5/1,300,827
  Paper filling----------------------     (4/)         --          --          --      (4/)   694,122          --    5/694,122
  Pelletizing (iron ore)-------------       --    641,549          --          --        --        --          --      641,549
  Pesticides and related products----     (4/)     36,476          --          --   130,979    25,802          --    5/193,258
  Plastics---------------------------       --         --        (4/)          --      (4/)    65,176          --     5/65,176
  Plug, tap, and wad-----------------       --         --          --       6,803        --        --          --        6,803
  Pottery----------------------------  165,535       (6/)      12,036        (6/)        --    21,539      11,024      210,134
  Rubber-----------------------------     (4/)         --          --          --      (4/)   341,191          --    5/341,191
  Sanitaryware-----------------------  157,334         --          --          --        --   132,497          --      289,831
  Sewer pipe, vitrified--------------       --         --   1,659,087     166,520        --        --          --    1,825,607
  Tile:
    Drain----------------------------       --         --     372,566          --        --        --          --      372,566
    Floor and wall ceramic-----------  124,985         --     128,447       3,629      (4/)    39,404          --    5/296,464
    Quarry---------------------------     (4/)         --     113,597          --        --        --          --    5/113,597
    Roofing--------------------------       --         --      47,667          --        --      (4/)          --     5/47,667
    Structural-----------------------       --         --     119,883          --        --        --          --      119,883
    Other----------------------------       --         --      29,232          --        --        --          --       29,232
  Waterproofing and sealing----------       --     35,698          --          --      (4/)        --          --     5/35,698
  Miscellaneous7/--------------------   33,457     24,753      11,227       3,787    68,887    60,673          --      202,784
  -----------------------------------
  See footnotes at end of table.

                        Table 4.--Clays sold or used by producers in the United States1/ in 1972, by kind and use--Continued
                                                                   (Metric tons)
  ----------------------------------------------------------------------------------------------------------------------------
                                                                        Fire clay
                                          Ball            Common clay (refractory  Fuller's            Undistrib-
                  Use                     clay  Bentonite  and shale       only)      earth    Kaolin    uted2/        Total3/
  ----------------------------------------------------------------------------------------------------------------------------
  Undistributed----------------------   60,319     37,839      21,772      84,300     7,145     8,218          --           --
  Exports----------------------------   32,373    383,825      36,623      25,030    35,489   678,658          --    1,191,998
                                     -----------------------------------------------------------------------------------------
        Total------------------------  612,608  2,510,179  42,172,847   3,248,298   896,787 4,824,081        (8/)   54,264,800
  ----------------------------------------------------------------------------------------------------------------------------
    1/Includes Puerto Rico.
    2/Total of clays indicated by footnote 6.
    3/Data may not add to total shown because of independent rounding.
    4/Withheld to avoid disclosing company proprietary data; included with "Miscellaneous."
    5/Incomplete figure; difference included with "Miscellaneous."
    6/Withheld to avoid disclosing company proprietary data; included with "Undistributed."
    7/Includes graphite anodes; caulking, putty, sealers, and glue; dummy and  oil well sealing; ink; mineral wool and
  insulation; roofing granules; textiles; water treatment and filtering; unknown uses; and data indicated by footnotes 3 and 4.
    8/Included with total for each specific use.