64.—Smaltine.
Occurs in crystals and masses; metallic lustre; color tin-white to steel-gray; powder dark gray; brittle; gives off garlic odor in a candle; melted with borax makes a deep blue glass; gravity 6.5 to 7.
Value.—An ore of cobalt and arsenic, containing eighteen to seventy per cent.
Localities.—Found in veins in granite regions with other ores, Mine la Motte, Mo.; Chatham, Conn.