 | | Book | | places of extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are...(1940). 12 T H E ORE MINERALS FIG. 4 80 X Mouat Mine, Stillwater Valley, Montana RAMDOHR From a border...the country rock and its sulphur from emanations. Rutile or anatase are almost always developed from ilmenite...contains > 70% ilmenite, as well as zircon, monazite, rutile, chromite, but no magnetite or hematite (cf. figs...figs. 144a, b) F I G . 13 80 x Pronto mine, Blind River, Ontario RAMDOHB Grains of uraninite (not |  | | Journal (volume) | | (by W. E. H. Carter, p. 349) — McDonald Mine—McConnell Mine—Artificial Graphite—Production and Value...Danvers Power, p. 488)—New South Wales p. 489) Switzerland—Cohalt in New Caledonia (by F. Danvers Power...Process.696—707 SAMPLING AND ESTIMATION OF ORE IN A MINE.* (By T. A. Rickard)—Introductory—Determination...Reserves—Inferences from Sampling— Future Prospects of a Mine—Collateral Evidence—Conclusion...708—749 THE MINING...Gold Crown..... 26-8 Gold: 10 and 20 crowns. Switzerland. Gold Franc. 193 Gold: 5, 10, 20, 50 and 100 |
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