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Bureau of Mines / Minerals yearbook 1990
Year 1990, Volume 2 (1990)

White, Doss H., Jr.; Johnston, John; Marsalis, W. E.
Louisiana,   pp. [224]-233 PDF (1.4 MB)

Page 228

228  LOUISIANA—199accounted for less than 1 % of the State's total
mineral value. 
 During the year, five companies operated five mines in five parishes to
produce 368,000 metric tons of common clay with a value of $1 . 1 million.
This was an increase of 134,000 metric tons but a decrease of $5 million
below that reported by the five firms in 1989. Caddo and Pointe Coupee Parishes
again accounted for more than one-half of the clay produced in the State.
Clay output was used in the manufacture of concrete blocks, common and face
bricks, and in highway surfacing. 
 One firm, Big River Industries Inc., mined and calcined clay in Pointe Coupee
Parish to produce a lightweight aggregate. The material was used in the manufacture
of lightweight concrete blocks and fire retardant materials. The aggregate
was barged as far North as Minnesota for use in lightweight products manufacture.
During the year, the Department of Transportation tested several tons of
the lightweight aggregate as a substitute for shell as a road base material.
 Gemstones.—A black opal deposit was reported in northwestern Vernon
Parish. Developers of the Hidden Fire opal mine announced plans to open a
campground and gem washing facility in the spring 
199 1. 14 
 Gypsum.—Anhydrate, a variety of gypsum, was mined by Winn Rock
from a quarry near Winnfield. The company crushed the material and sold it
for use on surfacing access roads to oil and natural gas wells. Production
and value decreased below that reported in 1989, reflecting the depressed
state of hydrocarbon exploration in Louisiana. 
 Lime.—Quicklime and hydrated lime were produced by USG Corp. at
plant in Orleans Parish. Both calcite and limestone were used in the lime
manufacture; calcite was obtained from mines in the Bahamas, and limestone
was shipped from a quarry in Missouri. Lime sales were to both the chemical
industrial sectors. Output declined, but value increased slightly. 
 Sa!t.—The State continued as the first ranked salt producer in
United States, accounting for 34 % of the Nation's total. Salt accounted
for 33 % of the State's mineral value in 1990. 
 Mine production was reported by three firms, Akzo Salt Inc. , Morton International
Inc. , and Carey Salt Co., with underground room-and-pillar mines at Avery
Island, Weeks, and Baldwin. Several other firms produced salt or a salt-bearing
medium from (1) the mechanical evaporation of brine, and (2) salt brine.
Production increased 1.1 million short tons, and value was up $5.6 million.
The recession had little effect on the chemical industry sector that used
salt as a feedstock. According to State severance tax data, Louisiana salt
producers reported the production of almost 6 million tons of rock salt and
1 1 . 3 million tons of salt brine. 
 Sand and Gravel.—Sales of sand and gravel ranked third in Louisiana's
. value. Production in 1990, as reported to 
~ the U.S. Bureau of Mines by the State's 
~ sand and gravel producers, totaled 15.1 million tons worth $65.9 million.
This exceeded the 1989 estimate by 1.9 million short tons and $900,000. The
State's sand and gravel producers paid severance tax on 8.8 million tons
of sand and 11 million tons of gravel. 
 Construction.—Construction sand and gravel production is surveyed
by the U.S. Bureau of Mines for even-numbered years only; data for odd-numbered
years are based on annual company estimates. This chapter contains actual
data for 1988 and 1990 and estimates for 1989. 
 Louisiana ranked 20th in tonnage among the 50 States reporting construction
sand and gravel production. Output, 14.6 million short tons valued at $55.9
million, was 1 million short tons and $ 1 .5 million above that estimated
for the sand and gravel industry in 1989. In 1990, 51 companies returned
U.S. Bureau of Mines canvass forms. They 
operated 85 mines in 24 parishes. The 5 leading parishes were: (1) St. Tammany,
with 8 companies operating 13 mines; (2) St. Helena, with 7 companies and
11 mines; (3) Washington, with 5 firms operating 8 mines; (4) Rapides, with
4 firms mining 7 properties; and (5) East Feliciana, with 7 companies and
8 mines. These five accounted for about 56 % of the production. End uses
for approximately 67 % of the production were unspecified. Of the remaining
tonnage, about 79 % was used as concrete aggregate, 13 % for asphaltic concrete,
and 4 % for road base and cover. 
 Louisiana construction sand and gravel statistics are compiled by geographical
districts as depicted in the State map. Table 3 presents end-use data for
the State's three districts. 
 Industrial.—Louisiana continued to rank 12th among the 38 States
industrial sand and/or gravel output. Production totaled 550,000 short tons
valued at $ 10 million, and output fell below the 1989 level by 13,000 short
tons; however, value exceeded the 1989 figure by $300,000. 
 Four firms operated four mines in Allen, East Baton Rouge, Red River, and
Webster Parishes. Red River and Webster Parishes were again the leaders in
terms of tonnage produced. Major sales were to the sand blasting, glass container,
silicon carbide, chemical, and foundry industries. 
 Stone (Crushed).—Stone production is surveyed by the U.S. Bureau
Mines for odd-numbered years only; data for even-numbered years are based
on annual company estimates. This chapter contains estimates for 1988 and
1990 and actual data for 1989. 
 The State's stone output, including shell dredged from the Gulf of Mexico
and Lake Pontchartrain, was estimated at 2. 1 million short tons valued at
*$16.8 million. This was a decrease of 1.1 million tons and $7.6 million.
This significant downturn was due primarily to the termination of shell production
in Lake Pontchartrain. Shell production, 

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