THE MINERAL INDUSTRY OF ARIZONA  Perlite.—Output of crude perlite
fromthree Pinal County mines increased 25NONMETALS 
 
 Asbestos.—Asbestos was shipped from three underground mines located
in the Salt River Valley of South Central Arizona near Globe. Nearly all
of the output was short-fiber material used in manufacturing asbestos products;
a small quantity was classified as filter fiber. The leading producer, Jacquays
Mining Corp., selectively mined and hand sorted chrysotile ore at the Chrysotile
mine for shipment to the company mill at Globe. Production also was reported
by Asbestos ' Manufacturing Co. from the Phillips mine and Metate Asbestos
Corp. from the Lucky Seven. Through research, in recent years Arizona producers
have developed several useful applications for the iron-free fiber, both
in food and as a medium in water filtration. 
 
 Cement.—Portland and masonry Cements were produced by Arizona Portland
Cement Co., a division of California Portland Cement Co., at its Rillito
plant, Pima ' County, and by Phoenix Cement Co., a division of American Cement
Corp., at Clarkdale, Yavapai County. Portland cement clinker produced in
the Rillito and Clarkdale plants was used in making masonry cement. Most
of the portland cement produced consisted of types I and II. Shipments of
finished portland and prepared masonry cements were mainly within the State.
Only a small percentage of the entire output was bagged; most of the cement
was shipped in bulk by truck or rail. 
 
 Clays.—The total quantity and value of clay sold or used in the State
increased. Output of miscellaneous clay used in manufacturing building brick
and portland cement declined 25 percent. Kaolin mined by Franconia Mining
Corp. from the Kianer and Doolin pits near Franconia, Mohave County, was
sold for refractory use. The quantity of bentonite clay used in filtering
and decoloring mineral and vegetable oils, as reservoir lining, as a hinder
for taconite pellets, for enameling, and other purposes, increased 44 percent.

 
 Diatomite.—A small quantity of crude diatomite—prepared and
sold for use as a filler—was mined by Arizona Gypsum Corp. from the
White Cliffs property near Mammoth, Pinal County. 
109 
 
 Feldspar.—Industrial Minerals Division, International Minerals &
Chemical Corp., was the State's only producer of crude and ground feldspar.
Used in manufacturing pottery and enamel, all of the potash feldspar produced
at the Taylor mine in Mohave County was ground in the company mill near Kingman.

 
 Fluorspar.—C. L. Whitelock reported the production and shipment of
10,000 tons of fluorspar from the Lone Star mine in Cochise County. The material
containing 80 percent CaF2, was used as a fluxing agent. 
 
 Gypsum.—Gypsum production came from three mines in Pinal County and
one in Yavapai County. Harquahala Gypsum Co. near Salome, Yuma County, was
idle. One-third of the total output was calcined and used in the manufacture
of building products. Uncalcined gypsum was sold for agricultural purposes
and as a cement retarder. 
 
 Lime—The closing of the copper mines. by the strike resulted in a
15-percent decline (32,190 tons) in the quantity of quick and hydrated lime
sold or used lowering the total to 186,234 tons. Of the seven plants reporting
production, three were at copper concentrators— Morenci, Ray, and San
Manuel. Most of the output was used in concentrating copper; the remainder
was used in manufacturing electric furnace steel, magnesium, pulp and paper,
sugar refining, and water purification. With the installation of a new 220-ton-per-day
rotary kiln, Paul Lime Plant, Inc., Paul Spur, doubled production capacity
in April'. Installation was prompted by the need to provide additional capacity
to supply an expanding copper industry. Spreckels Sugar Co. reported new
production of lime at its recently completed sugar refinery near Chandler.

 
 Mica.—A small quantity of scrap mica produced by Buckeye Mica Co.
at its mine near Buckeye, Maricopa County, was dryground at the company mill
in Buckeye. The ground mica was sold for use in manufacturing paint and roofing
materials, for well drilling, and in cement testing laboratories.