76.—Wad.
Occurs in masses; earthy and loose; can be broken by the fingers, and soils; no lustre; melted with borax makes a violet glass; feels very light.
Value.—Used in bleaching and for making smalt.
Localities.—Found in low places, generally in the vicinity of slate or iron ore beds. Warren, Vt.; Blue Hill, Hodgdon and Thomaston, Me.; Columbia and Duchess Counties, Austerlitz, Canaan Centre and Martinsburg, N. Y.; East Bradford and White Marsh, Pa.; Mine la Motte, Mo.