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e Estimate.

▸ Preliminary.

Revised.

1 Primary except as noted, or source does not differentiate.

2 Includes recovery from secondary materials.

Refined from domestic and foreign ores; excludes lead refined from imported base bullion.

4 Includes primary lead content of antimonial lead.

Lead bullion from imported ores and concentrates.

6 Year ended June 30 of year stated.

7 Lead in lead bars plus gross weight of antimonial lead; excludes lead in solder.

• Year beginning March 21 of year stated.

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Lime producers sold or used 19.6 million tons, compared with 19.8 million tons in 1970, a decrease of 1 percent. Sales of lime decreased 3 percent and were 6 percent below the 1969 record. Lime used by producers increased 3 percent and established a new record, 2 percent above the 1969 record. Figures include Puerto Rico.

Production of quicklime was 3 percent below 1970 and 7 percent below the 1969 record. Production of hydrated lime was 10 percent more than the 1970 record. Production of refractory dolomite declined 27 percent and was 58 percent below the 1956 record. The number of plants decreased from 195 to 188 and the average output per plant increased from 101,500 tons per year to 104,400 tons.

Six States, Ohio, Pennsylvania, Missouri, Texas, Michigan, and New York, each producing more than 1 million tons, accounted for 59 percent of the total output.

Leading producing companies were Marblehead Lime Co., with four plants in Illinois and one each in Indiana, Michigan, and Missouri; Mississippi Lime Co. in Missouri; Allied Chemical Corp., with plants in Louisiana and New York; Standard Lime & Refractories Co., with plants in Illinois, Ohio, Pennsylvania, and West Virginia; PPG Industries, Inc., with plants in Ohio and Texas; Bethlehem Steel Corp., with one plant in New York and two in Pennsylvania; United States Gypsum Co., with one plant in Alabama, one in Louisiana, one in Ohio, and two in Texas; Pfizer Inc., with plants in California, Connecticut, Massachusetts, and Ohio; The Dow Chemical Co., with plants in Michigan and Texas; and Diamond Shamrock Chemical Co. in Ohio. These 10 companies, operating 31 plants, accounted for 45 percent of the total lime production.

1 Physical scientist, Division of Nonmetallic Minerals.

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Table 2.-Lime sold or used by producers in the United States, by State and kind 1 (Thousand short tons and thousand dollars)

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W Withheld to avoid disclosing individual company confidential data; included in "Other States." 1 Excludes regenerated lime. Includes Puerto Rico.

2 Includes Connecticut, Idaho, Illinois, Indiana, Iowa, Kentucky (1971), Maryland, Massachusetts, Minnesota, Mississippi, Missouri, Nevada, New Jersey, New York, North Dakota, Oklahoma, South Dakota, Tennessee, Washington, and States indicated by symbol W.

Data may not add to totals shown because of independent rounding.

Table 3.-Lime sold or used by producers in the United States, by State and market 1

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Revised.

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195

12,759

7,029

19,788

188 12,380

7,254

19,635

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761

117

296

157

391

630

7

186

193

W

159

8

W

W Withheld to avoid disclosing individual company confidential data; included with "Undis

1 Excludes regenerated lime. Includes Puerto Rico.

2 Data may not add to totals shown because of independent rounding.

Table 4.-Lime sold or used by producers in the United States, by size of plant 1

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