THE MINERAL INDUSTRY OF NEW JERSEY 547 
 
Achievement in Safety were awarded to the Montclair Heights, Millington,
and Summit quarries of Houdaille Construction Materials, Inc.; Riverdale
quarry of Braen Industries, Inc.; and Franklin quarry of Farber White Limestone
Co. Employees of the five quarries worked without sustaining any lost-time
injuries. 
 
 SuIfur.—Shipments of byproduct sulfur decreased 9 percent below the
totals of 1966, but value was greater because of higher unit values. The
price increase was attributed to the tight supply of sulfur an4 the continuing
great demand for fertilizers which was the major market for sulfur. Plants
in New Jersey recovered 41,000 long tons of sulfur valued at $1.4 million;
average unit value increased from $29.94 in 1966 to $3~.68 per long ton.
Elemental sulfur was recovered as a byproduct of gas purification using the
Baehr, Claus, and Amine processes, at four plants, two in Gloucester and
one each in Middlesex and Union Counties. Part of the sulfur was captive
tonnage used for various chemical processes, and the remainder was sold for
manufacturing sulfuric acid. Humble Oil & Refining Co. recovered hydrogen
sulfide at its Bayway refinery in Union County. Liquid sulfur storage and
transhipment terminals were operated by Freeport Sulphur Co., Warners; Pan
American Sulphur Co., Newark; and Texas Gulf Sulphur Co., Carteret and Paulsboro.
Total capacity at the terminals remained at 72,500 long tons per year. 
 
 Vermiculite.—One plant in Essex and one in Mercer County produced
exfoliated vermiculite from crude material shipped from other States or imported.
Production, sales, and value were below 1966 levels. Exfoliated vermiculite
was used mainly as loose-fill insulation, plaster, and concrete aggregate,
and for agricultural purposes. 
 
METALS 
 
 Ferroalloys.—Shipments and value of ferroalloys produced by Shieldalloy
Corp., Newfield, Gloucester County, were below those of 1966. The company
utilized an aluminotherrnic furnace, chiefly for the production of ferroalloys
of vanadium, titanium, boron, molybdenum, columbium, and columbium-tantalum.

 Iron Ore.—Although active iron ore mining ceased in February 1966,
a limited quantity of magnetite concentrate was shipped from the inactive
Mount Hope mine of Shahinoon Industries, Inc. The company cleaned up the
last remaining ore which had been mined, beneficiated, and stockpiled in
previous years. 
 
 Titanium.—The totals of ilmenite concentrate production and value
were below those of 1966, but the average unit value increased substantially.
The Glidden Co. mined a titanium-bearing sand deposit at Jackson, Ocean County.
The material was concentrated and shipped to Baltimore, Md., for conversion
to titanium dioxide for use as a white paint pigment. 
 
 Zinc.—Manganiferous zinc ore recovered from the underground Sterling
Hill mine in Sussex County was greater in tonnage than in 1966. The ore was
crushed and shipped directly to a company-owned smelter at Palmerton, Pa.,
for recovery of zinc and manganiferous residuum. Zinc recovered was greater
in quantity than the previous year, but value declined because of lower unit
prices recorded for zinc. Shipments of manganiferous residuum increased compared
with the previous year. 
 
MINERAL FUELS 
 
 Coke and Coal Chemicals.—Koppers Co., Inc., produced coke and coal
chemicals at its merchant oven-coke plant at Kearney, Hudson County. Coal
chemicals recovered included crude coal tar and crude light oil. 
 
 Natural Gas.—Humble Oil & Refining Co. and Transcontinental Gas
Pipe Line Corp. operated underground natural gas (LP gas) storage facilities.
The former company operated two facilities in Union County; one propane,
with 250,000 barrels capacity and the other butane, with 255,000 barrels
capacity. Transcontinental operated a frozen earth liquid natural gas facility
in Bergen County with 298,000 barrels capacity. 
 
 Peat.—Production and sales of peat were greater than those of 1966.
The increases were due chiefly to more active operations and generally higher
unit values. Production was from five operations, four in Sussex County and
one in Warren