1985: 
January-June: 
Florida and 
North Carolina 
Tennessee —— — — Western States4

 1984 163012 21017  8104  2,343 41094 12,546 49197 14889  1182,244 11897

July-December 
Florida and 
 North Carolina Tennessee — — — —
Western States4

 748 MINERALS YEARBOOK 1985 
Mine years at a rate of 17 million tons per year 
 Chevron Resources Co mined phosphate FMC Corp received 80% of the ore a
24% rock from the Vernal Mine north of Vernal to 25% phosphorus pentoxide
(P305) shale UT An expanded mnie at Vernal a pipe- for consumption in its
09 million kilogram line and a new chemical complex at Rock per year P4 plant
near Pocatello ID Sun Springs WY were scheduled to start oper plot used the
remaining 20% of the mine ating in 1986 The phosphate rock will be production
in its phosphoric acid plant near reground to pass through a 150-mesh screen
Pocatello 
and pumped as a slurry through a buried Simplot replaced the Woodall Peak
Mine 152-kilometer pipeline to Rock Springs at near Conda ID with the Smoky
Canyon an initial rate of 11 million tons per year Mine near Afton WY The
ore was benefi 
 J R Simplot Co operated the Gay Mine ciated at the mine pumped to the calcming
on the Fort Hall Indian Reservation With kilns at Conda and shipped by rail
to the the addition of new reserves obtained from fertilizer plant at Pocatello
Operating at 2 the Shoshone and Bannock Indian Tribes million tons per year
the Smoky Canyon the mine was expected to produce for 17 Mine was expected
to produce for 25 years 
 
 
Table 2 —Production of phosphate rock in the United States by region'

(Thousand metric tons and thousand dollars) 
 Mine productionRegion p~Ø 
 Rock cony 
  tent 
Used directly 
 
~() 
Rock content 
Marketable production Beneficiated 
 
~() 
Rock con- Rock tent 
Total! 
 
~ con- Value. tent 
.~ 
 
~ 
 
stocks 
, 
 86305 10746 3313 1000 20377 6334 23690 7335 54558i 13115 
 i,107 223 15 4 635 i65 650 169 i4,567 175 
 3,241 841 881 237 1,620 501 2,501 738 68,928 906 
 Total2____ 90652 11810  4209  1242 22,632  7000 26841  8,242 ~63iO82 14,196

  80165 9882 2,798 853 18708 5813 21506 6666 497434 14691 
  1,223 239 13 3 570 147 584 151 i3,053 151 
  3,018 894 787 229 1,118 346 i,905 576 6i,265 692 
 Total2 — — — 84,405 11,015 3,598 1,086 20,396
6,307 23,994
7,393 ~572,0i7 15,534 
 Grand total2 175,058 22,825 7,807 2,327 43,028 13,307 50,835 15,634 ~1,203,265
XX 
 
XX Not applicable. 
 1llata for the same items appearing in this and other tables may not reconcile
because of computer rounding. 
 2Data may not add to totals shown because of independent rounding. 
 3Computer calculated value based on the weighted sold or used value. 
 4lncludes Idaho, Montana, and Utah. 
 5The total value is based on a weighted value. The total value does not
equal the sum of the regioiad or 1/2-year totals because weighted regional
or overall 1/2-year unit values were used in the calculations. The regional
and 1/2-year values are approximate. 
 
 
 
CONSUMPTION AND USES 
 
 The U.S. primary demand for phosphate either consumed domestically or exported
rock declined about 13% from its level in for fertilizer manufacture. Consumption
of 1984 as the U.S. farm economy remained phosphate rock from Florida and
North depressed. Phosphatic fertilizers sold well Carolina was about 12%
less than the quanat unprofitable prices in the export market, tity consumed
in 1984. 
which was the principal reason for sustain-  All of the phosphate rock mined
in Ten 
ing demand in 1985. nessee was consumed in electric furnaces in 
 With the exception of some low-grade Mount Pleasant and Columbia. Consumpphosphate
pebble exported for electric- tion was less than that of 1984. High-purity
furnace consumption in Canada, phosphate P4 was used to produce technical-
and foodrock from Florida and North Carolina was grade phosphoric acid and
other phosphate