41.—Lenticular Iron Ore.
Occurs in beds or masses, consisting of minute flattened grains; little lustre; generally soils the fingers; breathed upon has a clayey odor; color, brownish-red, powder more red; dissolves in strong muriatic acid with some effervescence; brittle; gravity 4.
Value.—An ore of iron yielding thirty-three per cent. Generally mixed with other ores at the furnace.
Localities.—Found in sandstone. Wayne, Madison, Oneida and Herkimer Counties, N. Y.; Marietta O.