There are several miscellaneous minerals which, when combined, rank third in financial value of minerals in the state. These miscellaneous minerals include: Aplite--among Piedmont crystalline rocks along the Piney River in Amherst County--used in the ceramic and glass industry--Virginia ranks first in quantity and in value Bauxite--in Augusta County--used for manufacturing aluminum, chemicals and abrasives Gypsum--in Smyth and Washington Counties--used primarily for the manufacture of cement, plaster of paris, wallboards, fillers and chalk Iron ore--in central and southwestern parts of the state--used in furnaces for the extraction of the metal itself Kyanite--in Buckingham, Charlotte and Prince Edward Counties--used in the manufacture of high-temperature refractories, used by metallurgical and glass industries, for insulators, for spark plugs, porcelains, boiler furnaces and in the ceramics industry--Virginia ranks first in quantity and in value Manganese--in central and southwestern parts of the state--in Augusta, Bland, Smyth, Giles and Wythe Counties--used in the manufacture of steel, dry batteries, chemicals, ceramics, fertilizer, drier in varnish and printer's ink Petroleum--in Lee and Scott Counties--used primarily for fuel Salt--in southwest--in Smyth and Washington Counties--used in the manufacture of various industrial chemicals and for specialized used in food, clay, dye, glass and paper industries; the brine used in manufacturing chlorine and soda ash Soapstone--in Albemarle, Franklin and Nelson Counties--used for the manufacture of switchboards, electric insulators, insecticides (ground soapstone) and for industrial and research laboratories Talc--in Fairfax and in Franklin Counties--used as paint extender and as pigment, paper and rubber filler, ceramic products, lubricant, dusting material and abrasives Titanium concentrates--in Nelson, Hanover and Amherst Counties--these minerals consist of ilmenite (used chiefly in the manufacture of pigments and to a slight extent in making steel) and rutile (used mainly for coating on electrical welding rods); titanium is used for increasing the hardness, strength and durability of steel and is sometimes used in making pottery, china and stainless steel--Virginia ranks third in titanium concentrates