"Manganese" Quotes from Famous Books
 ... abundant, and Iron occurs in the form of magnetic iron ore, titanite, chromate, yellow hydrated, per-oxide and iron pyrites. In most of these, however, the metal is scanty, and the ores of little comparative value, except for the extraction of manganese and chrome. "But there is another description of iron ore," says Dr. Gygax, in his official report to the Ceylon Government, "which is found in vast abundance, brown and compact, generally in the state of carbonate, though still blended with a little chrome, ...
— Ceylon; an Account of the Island Physical, Historical, and • James Emerson Tennent
... of observation by descending the Alleghany River from Western New York to the Ohio. He made Pittsburgh, Cincinnati, and Louisville centres of observation. At the latter place he published in the papers an account of the discovery of a body of the black oxide of manganese, on the banks of the Great Sandy River of Kentucky, and watched the return papers from the old Atlantic States, to see whether notices of this kind would be copied and approved. Finding this test favorable, he felt encouraged in his mineralogical ...
— Personal Memoirs Of A Residence Of Thirty Years With The Indian Tribes On The American Frontiers • Henry Rowe Schoolcraft
... steel production, mining (coal, iron ore, lead, zinc, manganese, and bauxite), manufacturing (vehicle assembly, textiles, tobacco products, wooden furniture, 40% of former Yugoslavia's armaments including tank and aircraft assembly, domestic ...
— The 1995 CIA World Factbook • United States Central Intelligence Agency
... previously to the application of the metal cyanic, mellonic or other toning baths. Alkalies and alkaline carbonates may also be used to remove the chromic acid, and leave a subsalt, or the very stable oxide or carbonate of manganese, which may be peroxidized by the use of chloride of lime, peroxide ...
— Photographic Reproduction Processes • P.C. Duchochois
... unexploited. The minerals which are commercially valuable include gold (found in small quantities), silver, graphite, galena, pyrite, marcasite, chalcosine, sphalerite, chalcopyrite, bornite, cuprite, hematite, limonite, ochre, chromite, magnetite, azurite, manganese, malachite, gypsum, &c. The combustibles are anthracitiferous coal, coal, "brown coal" and lignite. The lignite mines opened by the government at Pernik in 1891 yielded in 1904 142,000 tons. Coal beds have been discovered at Trevna and ...
— Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 - "Bulgaria" to "Calgary" • Various
|
