Collier's New Encyclopedia

A complete general encyclopedia of 1921 — the world as it was understood just after the Great War, from Aachen to Zwingli, across twelve volumes and six thousand pages.

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Molybdenite

natural molybdenum sulphide, MoS2. Resembles graphite in appearance, but is more bluish in color.

GENERAL HELMUTH VON MOLTKE Crystallizes in the form of six-sided scales, or short prisms, and is soft and greasy to the touch. Specific gravity, 4.7. Contains about 60 per cent. molybdenum. It is found in many parts of the United States, in Canada, Germany, Norway, and New South Wales. The ore serves as raw material in the preparation of ferromolybdenum, which enters into the composition of self-hardening steel. It is also used in the manufacture of a blue pigment, and for the prepara- MOLYBDENUM tion of molybdic acid and various salts middle of Mona Passage; area, nearly of molybdenum.

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