Use 
Concrete aggregates (including concrete sand) 
 
Plaster and gunite sands 
 
Concrete products (blocks, brick, etc.) 
District 2 
Asphaltic concrete aggregates and other bituminous mixtures 
 
Road base and coverings~ 
 
Fill 
297 
 
1,026 
149 
Quantity 
 
558 
24 
 
12 
 
334 
 
1,787 
 
245 
 
20 
Value 
 
1,514 
 
48 
 
32 
 
1,126 
 
4,871 
 
443 
45 
 
W 
Snow and ice control 40 
Railroad ballast — — W 
Other miscellaneous uses~ 8 32 3 9 162 621 
Unspecified:3 
  Actual — — 439 1,108 107 446 
  Estimated 418 962 1,149 3,649 1,956 5,410 
    Total' 2,648 6,603 4,571 12,845 5,988 18,660 
    Total56 2,402 6,603 4,147 12,845 5,432 18,660 
w Withhekl to avoid disclosing company proprietasydata; included with ~Other
miscellaneous  uses.' 
' Includes road and other stabilization(cementand lime). 
~Includes filtration. 
' Includes productionrepoited withouta breakdownby end use and estimates
for  nonrespondents. 
4Data may not add to totals shown because of independentrounding. 
' One metric ton is equal to 1,000kilograms or 2.204.62pounds. To convert
short tons into metric tons, mukiply short tons by    0.907185. 
6Total quantity and total value in thousand metric tons and thousand dollars.

NEBRASKA—1992  339TABLE 3 
 
NEBRASKA: CONSTRUCTION SAND AND GRAVEL SOLD OR USED BY PRODUCERS IN 1992,

BY DISTRICT AND USE 
 
(I'housand short tons and thousand dollars) 
 
District 1 
 Quantity Value 
 687 1,832 
 22 55 
 W W 
 
976 
 
2,369 
 
276 
 
102 
District 3 
 Quantity Value 
 1,909 5,767 
 134 405 
 W W 
 308 1,251 
 1,058 4,073 
 311 560 
 44 128 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
and garden use. Thirteen Nebraska firms, seven near Omaha, cut stone imported
from other States. 
 Kerford Limestone Co. started production at Nebraska's fourth underground
limestone mine near Weeping Water. Annual production of 1 . 18 million metric
tons (1.3 million short tons) oflimestone from mines in the Weeping Water
area was used in asphalt and concrete. Although most of the State is underlain
by limestone, it is mined only in the eastern counties because of the higher
quality material and shallower depth of deposits. 
 
 Other Industrial Minerals.—Several other industrial mineral commodities,
produced in Nebraska as byproducts of other industries or shipped into the
State, either were sold as recovered or processed into higher value commodities.

Anhydrous ammonia, urea, and ammonium nitrate were produced by fertilizer
plants in Nebraska. Major producers were Arcadian Corp. at La 
Platte in Sarpy County, Farmland 
Industries Inc. at Hastings in Dodge 
County and near Beatrice in Gage 
County, and Cominco-American, also 
operating near Beatrice in Gage County. 
 A variety of gemstones, minerals, and fossils were collected by amateur
collectors and professionals, both for private collections and for commercial
sales. The materials were sold as specimens and formed into a variety of
decorative items. Rock and mineral specimens included agate, calcite, chalcedony
rosettes, chert, jasper, marcasite, onyx, fire opal, pyrite, and a variety
of other quartz minerals. Both 
massive and crystalline varieties of many of these minerals were collected.
Fossils included bison teeth, brachiopods, crinoids, fish, horn coral, mammals,
mastodon ivory, sharks' teeth, and petrified wood. A visitor center and museum
were completed at Agate Fossil 
Beds National Monument in Sioux County. The facility will house mammal fossils
recovered in the State, American 
Indian artifacts, and a variety of displays. A prehistoric flint quarry was
discovered 
near Lyman, Scotts Bluff County. 
 Perlite was manufactured by the Zonolite Division of W. R. Grace &
Co.

~ near Omaha in Douglas County. Crude perlite was imported from other states

~ and expanded at the Omaha plant. The expanded perlite was sold as ifiler
material, aggregate for plaster and concrete, and a horticultural product.

 One plant, previously owned by Cyprus Mines Corp., United Sierra Division,
near Grand Island in Hall County, produced ground talc from raw material
obtained outside the State. The talc was used for ceramics, cosmetics, paper,
and plastics. Cyprus, the Nation's largest talc producer, sold its talc mines
and processing facilities in the United States to the RTZ Corp. PLC, of the
United Kingdom. The operations will be run by Talc de Luzenac, a French wholly
owned subsidiary of RTZ, and will operate under the name Luzenac America
Inc.