38.—Iron Pyrites.
Occurs in masses and square crystals; splendent lustre; color, bronze-yellow; brittle; strikes fire with steel; heated it gives off sulphur fumes; powder brownish; gravity 5.
Value.—Affords sulphur, copperas and alum. When found outside of the coal region, it often contains gold and silver.
Localities.—Found in all kinds of rocks. Bingham, Corinna, Farmington, Waterville, Brooksville, Peru and Jewett’s Island, Me.; Shelburne, Unity and Warren, N. H.; Baltimore, Hartford and Shoreham, Vt.; Heath, Hubbardston and Hawley, Mass.; Roxbury, Monroe, Orange, Milford, Middletown, Stafford, Colchester, Ashford, Tolland and Union, Conn.; Rossie, Malone, Phillips, Johnsburgh, Canton, Chester, Warwick and Franklin, Putnam and Orange Counties, N. Y.; Chester, Knauertown, Cornwall and Pottstown, Pa.; Greensboro’, N. C.; Mercer County, Ky.; Bainbridge, O.; Galena at Marsden’s Diggings, Ill.; on Sugar Creek, Ind.; mines of Colorado and California.