The Mineral Industry Volume 26 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...and imparts a silvery metallic luster. For a discussion of the geology and mineralogy of mica and methods of mining and preparation for the market, see Mineral Industry, 26, 505 (1916). MOLYBDENUM By Alfred W. G. Wilson The year opened with market conditions very favorable to the producer. The demand for ferro on foreign account enabled alloy manufacturers to book ore contracts ahead for some months. Unfortunately the supplies of ore did not come forward uniformly, and these delays were further complicated by freight congestion on the railways, both factors greatly retarding production. Under these conditions ferro-alloy manufacturers in the United States were unable to make deliveries on time, and a few contracts were cancelled. Profiting from experience some alloy manufacturers declined to accept business, unless the requisite supplies of ore were actually in stock. The supply of ore available throughout the year does not appear to have been sufficient to satisfy the demand and there were very material fluctuations in the price per unit. The ore available to United States manufacturers appears to have been largely of domestic origin, wulfenite and molybdenite, supplemented by some small lots of molybdenite received from Canada, South America, China, and Japan. Canadian supplies were not permitted to be exported in quantity, and did not influence market prices.1 The average New York prices, as quoted in the Engineering and Mining Journal, were tabulated by Charles Hardy as follows, prices being in dollars per pound for concentrates assaying 90 per cent. MoSj:2 Jan JIM Apr 2.10 July 2.16 Oct 2.20 Year. Feb 1.80 Nlay 2.95 Aug 2.14 Nov 2.20 $2.18 M-r 1.90 June 2.15 Sept 2.18 Dec 2.27 In Canada the following schedule of prices was being paid by the Imperi...