"Iron oxide" Quotes from Famous Books
... blue-black mineral, allied in composition to the sapphire, but containing a varying quantity of iron oxide; is found in large masses; is exceedingly hard, and largely used in polishing ... — The Nuttall Encyclopaedia - Being a Concise and Comprehensive Dictionary of General Knowledge • Edited by Rev. James Wood
... a chemist named Goldschmidt, of Essen, Germany. It is composed of iron oxide, such as conies off a blacksmith's anvil or the rolls of a rolling-mill, and powdered metallic aluminum. You could thrust a red-hot bar into it without setting it off, but when you light a little ... — The Ear in the Wall • Arthur B. Reeve |