Vermiculite.—Production of vermiculitedeclined slightly in 1967. South
Carolina710 
MINERALS YEARBOOK, 1967 
 
 
Table 7.—Sand and gravel sold or used by producers, by counties (Thousand
short tons and thousand dollars) 
1966 
County 
Number 
 
 
1967 
 
 
Number 
 
 
 
of mines Quantity 
Value of mines 
 
Quantity 
Value 
Aiken 2 WCherokee 1 12Chesterfield 3 169Dorchester 2 302 
 W 1 W 1 $129 3 W 2 
 
114 W 470 
373 
$114 
W 
W 
W 
Greenville 3 118Horry 1 86Jasper 1 WLancaster 1 736 
 72 3 W 1 W 1 368 1 
 
93 
95 
123 
320 
51 
275 W W 
Lexington 4 964Marion 1 7 
1,588 
7 
5 
1 
915 W 
1,566 
W 
Marlboro 1 1,507Spartanburg 1 113Sumter 1 1,067Other counties 9 935 
 Total 31 6,016 
W 
W 
W 
5,504 
1 
1 
1 
5 
1,228 
W 
986 
530 
W 
W 
W 
5,172 
 
 7,668 27 
 
5,248 
7,178 
W Withheld to avoid disclosing individual company confidential data; included
with "Other counties." 1 Includes Florence, Greenwood (1966), Kershaw, Pickens,
and Richland Counties, and counties indicated 
by symbol W. 
 
 Stone.—The production and value of crushed granite, dimension granite,
and crushed limestone increased in 1967. 
 Crushed granite was produced in seven counties by four companies from 10
quarries; leading counties were Lexington, Pickens, Greenville, Richiand,
and Spartanburg. Producters in order of descending rank were Palmetto Quarries
Co., Campbell Limestone Co., Weston & Brooker Co., and Superior Stone
Co. Seventy-one percent of the crushed granite was transported by truck,
and the remainder by railroad. 
 Dimension granite was produced by Winnsboro Granite Co., Fairfield County,
and Kershaw Granite Co. and Comolli Granite Co., both in Kershaw County.
All dimension granite produced was rough monumental stone. 
 Four companies quarried and crushed limestone; producers were Giant Portland
Cement Corp. (Harleyville quarry, Dorchester County), Campbell Limestone
Co. (Blacksburg quarry, Cherokee County), Ideal Cement Co. (Carolina quarry,
Dorchester County), and Santee Portland Cement Corp. (Holly Hill quarry,
Orangeburg County). Crushed limestone was used in cement, roadstone, agricultural
stone, and fluxing material for foundries. Ninety-three percent of the crushed
limestone was transported by truck and the remainder by rail. 
continued to rank second to Montana in output. The leading producer was W.
R. Grace & Co., with mines in Laurens and Spartanburg Counties and processing
plants near Enoree and Traveler's Rest, South Carolina. Patterson Vermiculite
Co. mined crude vermiculite and operated an exfoliating plant in Laurens
County. American Vermiculite Co. operated an exfoliating plant in Laurens
County. The vermiculite was used as loose fill insulation, in concrete, in
building plaster, and for other uses. 
 
METALS 
 
 Ferroalloys.—Mobil Oil Corp., Charleston, continued production of
ferrophosphorus as a byproduct of elemental phosphorus furnace operations.
Pittsburgh Metallurgical Co., also located in Charleston, produced ferrosilicon,
ferrochromium, and ferrochromium-silicon. 
 
 Zirconium.—M & T Chemicals, Inc., located near Andrews, Georgetown
County, continued operation of a grinding plant for production of dry-milled
and granular zircon for foundry, refractory, ceramic, and glass industry
applications. 
 
MINERAL FUELS 
 
 Peat.—Reed-sedge peat was produced by Ti-Ti Peat Humas Co., Colleton
County. Output of peat for use as a soil conditioner increased.