"Glauconite" Quotes from Famous Books
... and green sand owe their color to certain chemical changes which take place where waste from the land accumulates on the sea floor with extreme slowness. A greenish mineral called GLAUCONITE—a silicate of iron and alumina—is then formed. Such deposits, known as GREEN SAND, are now in process of making in several patches off the Atlantic coast, and are found on the coastal plain of New Jersey among the offshore ... — The Elements of Geology • William Harmon Norton |