The Big Whopper rare metals pegmatite, Separation Rapids, Ontario

Abstract The Big Whopper, one of only four giant economic rare metal pegmatites worldwide, is set to become a producer of the highly valued lithium mineral petalite (LiAlSi4O10) used in glass, ceramics and the specialty glass-ceramics familiar as Corningware¨ and the new ceramic stovetops. The deposit has a strike length of 1.5 km, a width of up to 80 m and a resource, open in all directions, of 11.6 Mt, grading 25% petalite. It is amenable to open pit mining and Avalon Ventures Ltd. holds a patent on a flotation process that produces an exceptional quality petalite product. The project will also produce: superb quality Na-feldspar which, too, finds use in glass and ceramics; the unusual Rb-K-feldspar for high voltage porcelain insulators; tantalum, in high demand for electronics; lepidolite, an ore of rubidium; and mica and tin. A positive prefeasibility study has been completed and it remains only to undertake bulk sampling and a full feasibility study.
Keywords: Big Whopper, Rare metals, Pegmatites, Industrial minerals, Geology.
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Summary: AgriumÕs history in fertilizer production and marketing goes back to 1931. Today, Agrium Inc. is a world leader in the production, distribution, and marketing of fertilizers and related products to the agricultural industry. Agrium is the largest North American producer of nitrogen fertilizers, a major producer of phosphate and potash fertilizers, and a world leader in fertilizer wholesale distribution and retail marketing. The mine at Kapuskasing is located some 40 km southwest of Kapuskasin...
Publication: CIM Bulletin
Author(s): R. Pressacco
Keywords: Industrial minerals, Phosphate, Agrium, Geology, Mining, Milling.
Issue: 1049
Volume: 94
Year: 2001
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Summary: Non-isothermal kinetics studies of the reduction phenomenon of electric arc furnace (EAF) dust generated in stainless steelmaking have been carried out. The dust was mixed with carbon as a reducing agent and dolomite as a binder to form pellets. A Thermo-Gravimetric Analyzer (TGA) was used to determine the weight loss of pellets heated at an average rate of 40 K/min. up to a temperature of 1500¡C. The degree of metal reduction was calculated by considering the pellet weight loss, and...
Publication: CIM Bulletin
Author(s): B. Peng, J. Lobel, J.A. Kozinski
Keywords: EAF dust, Waste recycling, Kinetics
Issue: 1049
Volume: 94
Year: 2001
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