THE CUBA REVIEW 



Sketch-map of the eastern part of Cuba, showing iron ore districts. (Iron Trade Review). 



dom from a large number of Buena Vista 

 (Moa) ores, shows the striking similarity 

 of the ores of the two districts: Fe, 44; 

 Si02, 1.62; AI2O3, 11.61; Mn, I.IS ; Cr, 

 CaO.MgO, 1.66; loss on ignition, 19.18 per 

 cent. 



The higher percentage of phosphorus in 

 the San Felipe ores probably proves noth- 

 ing, as ores of a similar origin vary in this 

 element the world over. 



The analyses quoted in this section were 

 made by R. E. Kresge, chemist, Bethlehem 

 Steel Co., South Bethlehem, Pa., and by 

 W. W. Fitch, chemist, Bethlehem Iron 

 Mines Co., Camaguey, Cuba. 



Not enough exploration has yet been 

 done to prove the economic possibilities of 

 the San Felipe iron ores. Pits in 40 per 

 cent ore are common over the whole area 

 of San Felipe hill. Certain pits have shown 

 the following occurrences : 



Other areas seem to indicate the pres- 

 ence of good tonnages of 45 per cent ore 

 and better, as the following pits show : 



5 feet of 45 per cent ore 



3 feet of 48 per cent ore 



11 feet of 46 per cent ore 



7 feet of 47 per cent ore 



Some areas have yielded 50 per cent ore, 

 but, so far, no great amount of such ore 

 has been found. 



Judging from the enormous area con- 

 trolled by the Bethlehem Iron Mines Co. 

 (nearly 60 square miles), and assuming 



that one-third of this area is worthless, 

 whi'ch makes an extremely conservative 

 estimate, it is probable that there are 

 400,000,000 tons of 40 per cent ore and 

 50,000,000 tons of 45 per cent ore. 



Some experiments already performed 

 seemed to show possibilities of raising the 

 percentage of iron in the ore by screening 

 or washing. Careful experiments on 100- 

 pound samples of varying percentages of 

 iron, but all above 40 per cent, seem to 

 prove conclusively that simple screening 

 will give a concentrate which will average 

 46 per cent of iron, and which will not be 

 finer than ^/^-inch mesh. This will, how- 

 ever, be attended by considerable loss of 

 fines, probably 50 per cent, which will be 

 very high in alumina and siHca. 



Other economic features of the San Fe- 

 lipe deposit, aside from composition and 

 possible mechanical enrichment, are most 

 favorable. San Felipe being less than 500' 

 feet above the sea level, and with gradual 

 slopes on the west and north sides, re- 

 quires no inclined planes. The ore, espe- 

 cially if screened, certainly needs no nod- 

 ulizing to improve its physical character 

 for furnace use, and the known depths of 

 ore and its coarse granular nature favor 

 the work of steam shovels. 



A $5,000,000 syndicate to manufacture 

 and market sugar has been formed in 

 Havana, says the Neiv York American, 

 with a number of American capitalists in- 

 terested. President Gomez and the 

 Spreckels family are associated with 

 Alexican, Louisiana, Porto Rican and 

 Venezuelan capitalists. 



