47.—Marble.
Occurs coarse and fine granular; frequently veined or mottled; brittle; can be cut with a knife; takes a polish; effervesces with acids; reduced to quicklime by heat; a gray variety contains stems and joints of worm-like fossils; gravity 2.5.
Localities.—Brandon, Rutland, Dorset, Shoreham, Pittsford, Middlebury, Fairhaven, Cavendish, Lowell, Troy and Sudbury, Vt.; West Stockbridge, Egremont, Great Barrington, Lanesboro, New Ashford, Sheffield, New Marlboro, Adams, Cheshire and Stoneham, Mass.; Clinton, Essex, Dutchess, Onondaga, Putnam, St. Lawrence, Warren and Westchester, Counties, N. Y.; Smithfield, R. I.; New Haven, Milford, Conn.; near Philadelphia, N. J.; Texas and Hagerstown, Md.; Lancaster County, Pa.; Jefferson and Genevieve Counties, Mo.; Knox and Sevier Counties, Tenn.; Joliet, Ill.; Cherokee and Macon Counties, N. C.; Marquette, Mich.; near Deep River and on the Michigamig and Menominee Rivers, Wis.