52 SMITHSONIAN MISCKI.LAN KOUS COLLECTIONS VOL. 58 



CAPE COLONY (Continued) 



Abstract: Mg. Journ. Railw. Comm. Gaz., Vol. 83, 1908, London, pp. 119-120. 



Describes Kuils River tin deposits which are located some l? 1 /^ miles southeast of 

 Capetown in hills composed of gray granite, coarsely porphyritic in structure with 

 large quantity of biotite. Ore occurs both as lode and alluvial. Methods and cost 

 of working given. 



234a. . New methods of concentrating alluvial tin. 



Mg. Journ. Railw. Comm. Gaz., Vol. 84, 1908, London, p. 56. 



" Describes the new methods introduced at the Kuils River tin mines, Cape Colony, 

 which consist in effecting a coarse concentration by means of a rotary pan similar to 

 that used in diamond washing, and then cleaning the rough concentrates in a 

 hydraulic separator to the grade required." 



235. KEYZER, S. S. Tin in Cape Colony. 



Mg. Journ. Railw. Comm. Gaz., Vol. 80, 1906, London, p. 8. 



Description of lode and alluvial deposits occurring in Cape Colony, between 

 Kuils River and Stellenbosch. 



235a. WAGNER, P. A. Notes on the tin deposits in the vicinity of Capetown. 



Trans. Geol. Soc. South Africa, Vol. 12, 1909, Johannesburg, pp. 102-111, pi. 1 and 

 figs. 2. 



Describes the lode tin deposits at Langverwacht, Hazendal, Welbeloond, Papkuils- 

 fontein, and Hoogekrall and detrital deposits at Langverwacht (Kuils River). 



The first two occur in quartz veins in white granite dikes cutting granite. The 

 veins carry cassiterite, wolframite, molybdenite, arsenopyrite, pyrite and a little 

 tourmaline. The other three are quartz veins cutting slates, and are accompanied 

 by much more tourmaline, arsenopyrite and pyrite. 

 At Papkuilsfontein an assay from one vein showed: 

 Sn = 12.9 per cent. 

 Bi = 0.27 " 

 Cu = trace. 

 As = 21.78 " 

 Au = 2 dwts. 3 gr. per ton. 

 Ag = 1 oz. 12 dwts. per ton. 



Cassiterite impregnates the country rock, more or less, at all the places. 

 Fluorite and topaz are absent and no other fluorine-bearing minerals are noted. 



NORTH AND SOUTH CAROLINA 



236. ANONYMOUS. Tin in North and South Carolina. 



Mg. Sci. Press, Vol. 86, 19C3, San Francisco, p. 300. 



New tin veins have been discovered which give more promise than those formerly 

 known. Manner of occurrence described. Ore strongly resembles the greisen of 

 some of the Black Hills tin mines, although usually more decomposed. 



237. . Tin ore in North Carolina. 



Mg. World, Vol. 21, 1904, Chicago, pp. 174-173, photos 3, sketches 2. 

 Treated under the heads: geology of the deposits; development work; description 

 of veins; equipment; history of development. 



238. - . Tin in South Carolina. 



Mg. Rep., Vol. 50, 1904, Denver, pp. 65-66. 



Notice of the discovery of tin in South Carolina on the Ross place. 



239. . Tin in the Carolinas. 



Eng. Mg. Journ., Vol. 82, 1906, New York, p. 823. 



" Tin is present in exceedingly irregular pegmatite dikes, as cassiterite, which 

 occurs only as an original constituent of the pegmatite. This mineral is not evenly 

 distributed through the dikes, but is- generally segregated or concentrated along 

 certain lines." 



Unimportant. 



