Transactions . ick. It dips toward the northwest at about the slope of the hillside(40° to 45°) and where it does not crop out it hes 30 to 50 ft. (9 to 15 m.)within the hill. Two tunnels cut the ore at levels 100 ft. and 200 ft. below ERNEST F. BURCHARD 165 the top of the outcrop. The orebody hes so close to the surface of thehillside that it might possibly be mined as an open cut. The ore varies in quahty, the better grade being in the western partof the deposit, where it is reported to carry as high as 48 per cent, ofchromic oxide. Analyses furnished by the Spanish American Iron a r
Transactions . ick. It dips toward the northwest at about the slope of the hillside(40° to 45°) and where it does not crop out it hes 30 to 50 ft. (9 to 15 m.)within the hill. Two tunnels cut the ore at levels 100 ft. and 200 ft. below ERNEST F. BURCHARD 165 the top of the outcrop. The orebody hes so close to the surface of thehillside that it might possibly be mined as an open cut. The ore varies in quahty, the better grade being in the western partof the deposit, where it is reported to carry as high as 48 per cent, ofchromic oxide. Analyses furnished by the Spanish American Iron a range of 36 to 48 per cent, of chromic oxide, 7 to 15 per cent, ofsilica, and 8 to 15 per cent, of iron for the whole body. By cobbing orby simple water concentration it might be possible to maintain a ship-ping grade of ore containing 44 per cent, of chromic oxide. Accordingto the companys engineers, the deposit has been calculated to containabout 50,000 tons of chrome ore, one-half of which should carry more. Fr-s. 5. -Coarsely spotted chrome ore from Caledonia natural size. than 40 per cent, and the other half between 34 and 40 per cent, chromicoxide. By rough concentration, for which abundant water is availablein the creek, the lower-grade ore should yield 15,000 tons of concentratescarrying 40 per cent, of chromic oxide; hence a total of 40,000 tons ofore of 40-per cent, grade may be available. Cayoguan Group.—This group, which includes the Cayoguan, theNarciso, and the Cromita No. 1, 2, and 3, occupies both sides of Cayo-guan River, about 5 mi. (8 km.) above its mouth in Moa Bay (Fig. 6).It is about 8 mi. (13 km.) by trail from an old wharf at Punta Gorda;at present the first 3 mi. of this distance may be traveled by scows onCa3^oguan River, then a foot trail near the river is followed to a campsite about ^?^ mi. below the nearest deposit. In order to transport orefrom the deposits, a road must be built down the Cayoguan, a difficultundertaking, because the
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
