Mine Uvalde. 
 Do. 
Cameron. 
 
Harris. 
 
Nueces. 
Grinding plant do 
 
  
 
Furnace 
 
Channel 
 
Furnace 
 
 
Channel 
 
Furnace 
 
- - - do 
706 
MINERALS YEARBOOK, 1972 
 
 Magnesium compounds were used in the production of magnesium metal, and
by the cement, ceramic, chemical, petroleum, rayon, rubber, and other industries.

 Manganese.—Silicomanganese and ferromanganese were produced by the
TennTex Alloy Corp. at its Harris County plant. Feedstock ores were imported
from foreign countries. 
 Mercury.—Texas ranked sixth in procluction following more than a 50%
decline in the States mercury output. The Whit-Roy mine, operated by The
Anchor Co. in Presidio County, was the only active mercury mine in Texas
in 1972. Value continued to decline, and the average quoted price at New
York was $218.28 per 76pound flask, a decrease of 25% from the 1971 level.

 The outlook for the Study Butte mine in Brewster County which was shut down
in June 1971 is particularly bleak. The influx of water into the mine from
adjacent abandoned workings through connecting fissures had been a problem
during mining operations. Pumping operations were discontinued in 1971 and
the mine flooded. Because of the cost of dewatering the mine, it will probably
not be reopened unless mercury prices increase substantially. 
 Sodium.—Metallic sodium was produced by the electrolytic processing
of brine feedstock by Ethyl Corp. at its plant near Houston. The output was
used principally 
to produce tetraethyl and tetramethyl lead, two compounds added to hydrocarbon
fuels to increase antiknock ratings. 
 Tin.—Guif Chemical & Metallurgical 
Corp. recovered tin and tin alloys at its 
Texas City smelter. Ore and concentrate 
feedstocks were imported, principally from 
Bolivia. 
 Urariium.—Output increased 11%, and Texas ranked third among the producing
States. According to the U.S. Atomic Energy Commission, uranium ore reserves
in 55 known deposits in Texas totaled 10.67 million tons based upon an $8
per pound value. Average uranium oxide (U308) content was 0.152%. Reserves
of U308 totaled 16,249 tons, 5.95% of the U.S. total. 
 Uranium drilling declined from 3.87 million to 3.34 million feet in 1972,
a decline of 14%, whereas nationwide drilling was virtually unchanged. Texas
accounted for 21.7% of the U.S. uranium drilling footage. Acreage held for
uranium mining and exploration declined from 899,000 acres to 641,000 acres,
a 29% reduction. 
 Zinc.—Recovery of zinc at smelters and refineries declined 12%. Shutdown
of the American Zinc Co.'s Dumas retort smelter before yearend 1971 contributed
to the decline. The Texas State Air Control Board and ASARCO agreed to a
temporary variance for continued operation of ASARCO's Amarillo retort smelter.

 
 
Table 26.—Texas: Principal producers 
 
Commodity and company Address Type of activity County 
Asphalt (native): 
 
Uvalde Rock Asphalt Co White's Uvalde Mines, Inc 
 
Barite: 
Dresser Minerals 
 
The Milwhite Co., Inc.~ National Lead Co. 
 
Carbon black: 
Ashland Chemical Co 
 
Cabot Corp 
 
Do 
 
Columbian Carbon Co - -- 
 
Do 
Continental Carbon Co - - 
J. M. Huber Corp 
P.O. Box 531 
San Antonio, Tex. 78206 
 
P.O. Box 499 
 
San Antonio, Tex. 78206 
 
P.O. Box 6504 
 
Houston, Tex. 77005 
 
P.O. Box 15038 
 
Houston, Tex. 77020 
 
P.O. Box 1675 
 
Houston, Tex. 77001 
 
P.O. Box 1503 
 
Houston, Tex. 77005 
 
125 High St. 
 
Boston, Mass. 02110 
 
  
 
380 Madison Ave. 
 
New York, N.Y. 10017 
 
  
 
P.O. Box 22085 
 
Houston, Tex. 77027 
 
P.O. Box 881 
 
Borger, Tex. 79066 
Aransas and Wheeler. 
Carson. 
 
Gray and 
Howard. 
Montgomery and Terry. 
Gaines. 
Moore. 
 
Harris and 
Hutchinson.