"Magnetite" Quotes from Famous Books
 ... Irons.—As Fe occurs native only in meteorites and in small quantities of terrestrial origin, it is obtained from its ores. There are four of these ores—magnetite (Fe3O4), hematite (Fe2O3), limonite (2 Fe2O3 3 H2O), and siderite (FeCO3). Which is richest in Fe? Compute the proportion. FeCO3 occurs mostly in Europe. The reduction of these ores, as well as of other metallic ...
— An Introduction to Chemical Science • R.P. Williams
... be composed largely of quartz, intermingled with which is a fine, fibrous, radiated substance, the optical properties of which demonstrate it to be fibrolite. In addition, the rock is filled with minute crystals of octahedral form which are composed of magnetite, and scattered through the rock are minute yellow crystals of rutile. The red coloration which these specimens possess is due to thin films of hematite. The rock is therefore fibrolite schist, and from a lithological standpoint it ...
— Illustrated Catalogue Of The Collections Obtained From The Indians Of New Mexico And Arizona In 1879 • James Stevenson
... exhibit occupied 1,020 square feet in the Palace of Mines and Metallurgy. Here were shown 186 exhibits of sandstone, limestone, and other building stone, magnetite, brick (both burned and green), transparent selenite, and various others from Oklahoma. It also contained salt, oil, and glass sand testing 96 per cent pure. The plaster resources of Oklahoma were shown from the raw material in a solid block weighing 3,600 pounds, through the various evolutions ...
— Final Report of the Louisiana Purchase Exposition Commission • Louisiana Purchase Exposition Commission
... because it was entirely free from snow. Taylor's way had led him and his party over a deep fresh-water lake, four miles long, which was only surface frozen—this lake was full of algae. The gravels below a promising region of limestones rich in garnets were washed for gold, but only magnetite was found. When Taylor had thoroughly explored and examined the region of the glaciers to the westward of Cape Evans, his party retraced their footsteps and proceeded southward to examine the Koettlitz Glacier. Scott had purposely sent ...
— South with Scott • Edward R. G. R. Evans
... ore, crude oil, mercury, tin, tungsten, antimony, manganese, molybdenum, vanadium, magnetite, aluminum, lead, zinc, uranium, world's ...
— The 1990 CIA World Factbook • United States. Central Intelligence Agency |
