manganiferous

• “On electrolyzing a manganiferous solution of copper nitrate, red permanganic acid appeared in a stratum floating above the platinum disk coated with brown peroxide.”

  Scientific American Supplement, No. 441, June 14, 1884.

• “Of ferromanganese and other very manganiferous substances, in which the manganese need not be determined with greater exactness than to 0.1 per cent., only 0.01 gram. is taken for a test; but of common pig, wrought iron, steel, iron ore, slags, etc., there is taken 0.5 to 1 gramme according to the supposed content of manganese and the desired exactness of the estimation.”

  Scientific American Supplement, No. 324, March 18, 1882

• “Suppose that we have a sample of steel or manganiferous cast-iron containing less than 7 per cent of manganese.”

  Scientific American Supplement, No. 401, September 8, 1883

• “It may be urged that it does not seem necessary to effect the desulphurization by means of the reaction of the manganese and iron sulphide outside of the blast furnace, as it is possible, by suitably directing the blast furnace, by the employment of manganiferous ores or highly basic slag, so to desulphurize the iron in the blast furnace itself that it would be unnecessary further to lower the percentage of sulphur.”

  Scientific American Supplement, No. 829, November 21, 1891

• “If sulphureted pig iron, poor in manganese, is added in a fluid condition to manganiferous molten pig iron, poor in sulphur, the metal is desulphurized, and a manganese sulphide slag is formed.”

  Scientific American Supplement, No. 829, November 21, 1891

• “They are similar in their geologic occurrence to many of the iron ores and are often mixed with iron ores as manganiferous iron ores and ferruginous manganese ores.”

  The Economic Aspect of Geology

• “The manganese and manganiferous iron ores of the Cuyuna district of Minnesota, the largest source of low-grade ores in this country, were formed by the action of weathering processes on sedimentary beds of manganese and iron carbonates constituting "iron formations.”

  The Economic Aspect of Geology

• “The thickness of the upper part of the bed is six and one-half feet, beneath which is about one foot of soft highly manganiferous ore.”

  North Carolina and its Resources.

• “Massive manganiferous garnet is found in Rutherford, Lincoln, Gaston, Rockingham, Stokes, Chatham and other localities.”

  North Carolina and its Resources.

• “All of these ores are slightly manganiferous at times.”

  North Carolina and its Resources.

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