melano lite

[Pref. melano-, and Gr. lithos =stone.] Min.: A black opaque mineral having a dark green streak. Hardne , 2; specific gravity, 2.69, Analysis yielded: Silica, 35-36; alumina, 449; ses quioxide of iron, 23:20; protoxide of iron, 25-18; soda, 1:86; water, 10.24. Near hi singe rite in composition (q. v.). Found incrusting the sides of a fi ure at Milk-Row quarry, near Charles town, Ma achusetts.