Canadian mining journal January-June 1905 . evious thorough investigations, the newmineral radium. This property is situated about 40 miles fromSt. Emily Station, on the C. P. R., and has been worked informer years for white mica, which is said to be of excellent-quality. This mineral occurs in a remarkable powerful vein frequently appearing to penetrate each other with straight ra-diating clavage faces for a considerable length. The whitemuscovite mica occurs in this vein partly in isolated crystalsdistributed irregularly over the whole width, and partly inaccumulations near the contact with
Canadian mining journal January-June 1905 . evious thorough investigations, the newmineral radium. This property is situated about 40 miles fromSt. Emily Station, on the C. P. R., and has been worked informer years for white mica, which is said to be of excellent-quality. This mineral occurs in a remarkable powerful vein frequently appearing to penetrate each other with straight ra-diating clavage faces for a considerable length. The whitemuscovite mica occurs in this vein partly in isolated crystalsdistributed irregularly over the whole width, and partly inaccumulations near the contact with the adjacent of the crystals obtained from the mine deliver fine sheetscutting from 2 x 3 up to 3 x 7 inches and some crystals in situmeasured 18 inches square. This pegmatite vein is distin-guished by the occurrence of foreign minerals. Tourmaline,beryl and garnets and the rare mineral Samarskite or urano-tantalite occur somewhat abundantly in the excavation madein the vein. An analysis of Samarskite found on this View showing a Section of the Asbestos and Asbestic Companys Quarries. (See page 126. of pegmatite near a creek, varies from 30 to 50 feet in thick-ness, and is abundantly charged with muscovite mica crystals,many of which yield sheets of merchantable size and vein, which runs east and west, cuts the gneiss formationunder an angle of 40 degrees, the dip being perpendicular, andis exposed by stripping for a distance of 300 feet. While therock on either side, and in contact with it and throughout thecountry generally, is a comparatively fine grained aggregateof quartz, feldspar and hornblende with scaly portions of micaarranged in parallel layers, and no constituent predominatingin any layer to the exclusion of the others, the vein matrix, onthe other hand, consists of large and coarse crystalline massesof pure quartz, and flesh-coloured, or orthoclase feldspar, con-fusedly aggregated together, but perfectly distinct from, and acco
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