T II E CUBA R E V I E \Y 



City of Camagiiey and extending southeastward to a poinl near the Camagiiey „V: 



Nueyitas Railroad, I \\ Lies northeasl of Alia Gracia station, [mi liatels north of 



Camagiiey there is a nearly level plain, which extends northward for several miles 

 and is covered with a thin mantle of ferruginous clay and Limonite gravel. The 

 deposits lie along the border of this plain, al its junction with some low hills thai 

 are outliers of a plateau south of the Cubitas Mountains, so thai they are easily 

 accessible by wagon roads. Float ore is found in this zone and broken ore <-;ips ten 

 of twelve small mounds thai rise live to fifty feet above the surrounding surface. 

 In this /.one there are also about fifteen small outcrops of ore, most of them obscured 

 by broken ore or rock debris. The claims known as the Teire, Leocadia and Ninas are 

 near the west end of the zone, one near the middle of the zone is the Nona, and the 

 easternmost one is the Victoria. Prospecting has been done here to obtain samples 

 of ore for analysis, but it has not shown the nature or extent of the deposits in 

 place. On the surface, however, there is a considerable quantity of ore in the 

 form of broken blocks and coarse float, probably 20,000 tons, and if the deposits 

 have not been completely eroded there may be as much more ore in place below 

 the surface. The ore is not of uniform grade. Some is fine grained and compact, 

 but the greater part is medium to coarse grained. A small part of the ore consists 

 of granular chromite containing little or no foreign material, but the greater part 

 is "spotted" ore — that is, ore consisting of grains of chromite embedded in a gangue 

 of light-green to white serpentine. 



Ten samples of ore from deposits near Camagiiey contained 27 to -". r > per cent, 

 of chromic oxide (Cr 2 3 ), as shown by analyses tabulated below. Only two of these 

 samples contained less than 30 per cent, and few contained more than 35 per cent. 

 The ore in these deposits is therefore of low grade, but it may be suitable for cer- 

 tain purposes. If it should require concentration sufficient water is believed to be 

 available in small streams within a mile of the deposits. 



ANALYSES OF CHROME ORE FROM DEPOSITS NEAR CAMAGUEY 



9 10 11 12 13 



Cr 2 O* 33.7 33.7 33.8 35.2 36.3 



Fe 12.2 12.3 10.0 1 1 .8 10.6 



Si O 2 3.9 4.3 4.1 3.9 3.6 



AP ( > : 29.S 30.7 27.0 27.4 26.2 



14 15 16 17 18 



Cr 2 O' 35.0 27.4 29.1 • 34.2 34.1 



Fe 11.6 10.7 11.4 11.1 11.0 



Si O 2 4.5 4.0 2.4 1.5 1 .5 



Al 2 O* 26.7 30.2 32.9 28.3 28.7 



S .... .... Noxe. 



P .... .... Trace. 



Ni .... .... ± 0.05 



Samples 0-11 from tin Teibe, Leocadia, and Ninas claims, north-northeast of Cama- 

 giiey; 12-16 from the Nona and an unnamed claim, northeast of Camagiiey; 17-18 

 from the Victoria claim, northeast of Attn Gracia. 



As these deposits can be reached by wagon roads that are already in existence 

 or that might be laid out over nearly level ground they deserve prompt attention, 

 notwithstanding the low grade of the ore. 



Besides the chrome-ore deposits examined by Messrs. Burch and Burchard in 

 the vicinity of Camagiiey others are situated about 20 miles north of Camagiiey and 

 just north of the east end of the Cubitas field of surficial brown iron ore. In this 

 locality claims known as the Cid, Teyde and Yunque, which were examined by A. C. 

 Spencer, of the United States Geological Survey, in 1907, all show noteworthy quan- 



