Mineral Resources of the United States Volume 3

Mineral Resources of the United States Volume 3

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886 edition. Excerpt: ...of manganese. Those utilized in this country are, with scarcely an exception, oxides. Four oxides are noted: Protoxide (MnO), known also as the monoxide or manganous oxide. Multiplying the amount of the protoxide or MnO in an ore by.7746 will give the contents of metallic manganese in the ore. Sesquioxide (Mn203), braunite, brown oxide, known also as manganic oxide. This oxide occurs in nature as braunite and in the state of hydrate as manganite (Mn203, H20). This, in the form of braunite, is one of the most important ores of manganese occurring in this country. Multiplying the amount of sesquioxide (Mna03) in an ore by.6392 will give the amount of metallic manganese in the ore. a I desire to make especial acknowledgment for assistance rendered and information given in the preparation of this report to Mr. John Fnlton, Johnstown, Pennsylvania; Mr. A. M. Evans, Batesville, Arkansas; Mr. A. P. Sflva, Cartersville, Georgia; Mr. AlbertMarkham, Markhamsville, New Brunswick; an.dMr. E. Gilpin, jr., of Halfai, Nova Scotia.--J. D. W. Peroxide (Mn02) pyrolusite, black oxide.--This is, with braunite, the most common ore of manganese in tbe United States. Psilomelane contains the peroxide. Multiplying the amount of peroxide (MnOj) in an ore by.63218 will give tbe amount of metallic manganese in the ore. Hausmannite is a brown manganese oxide containing theoretically 72.1 per cent, of metallic manganese. Localities in the United /States.--The localities in this country in which manganese is found will be given in detail when discussing its occurrence in the different States. It only need be said here that it has a distribution almost coextensive with the deposits of the brown hematite ores of the country. In almost all of these ores manganese occurs...show more

Product details

  • Paperback | 194 pages
  • 189 x 246 x 10mm | 354g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236979273
  • 9781236979278