ScienceDaily (2008-02-03)
-- An archaeologist discovered an intact ancient iron ore mine in South America that shows how civilizations before the Inca Empire were mining this valuable ore. The Nasca people may have used the red-pigmented mineral primarily for ceramic paints, but they also could have used it as body paint, to paint textiles and even to paint adobe walls.
Purdue University (2008, February 3). Archaeologist 'Strikes Gold' With Finds Of Ancient Nasca Iron Ore Mine In Peru. ScienceDaily. Retrieved February 5, 2008, from http://www.sciencedaily.com/releases/2008/01/080129125405.htm#