2 Report on the Copper Ores of the Deoghur Mines. [No. 1. 



South falling into the Hooghly, those flowing to the North falling into 

 the Ganges ; it is situated in a dense jungle of Asun, Sakua, Dhow, 

 Kuchnar, Keud, Jamun, Aonla, Kusmubha, Chirownjee, and is on the 

 fork or junction of two small mountain torrents, which discharge their 

 waters into the Chandun river, a tributary to the Ganges, which dis- 

 charges itself into the Ganges near Bhaugulpoor ; these torrents and 

 the Chandun river are mere dry sandy channels during the cold and 

 hot weather. 



3. The occasion of the copper being brought to light was the hill 

 men bringing in to Mr. Vincent, small pieces of a bright green species 

 of waterworn felspar, which at once showed the existence of the ore. 

 The ground in the immediate neighbourhood of the ore is pretty freely 

 strewed with green felspar, and with weather and waterworn fragments 

 of the ore embedded in the felspar. The immediate superficial soil is 

 composed of quartz, felspar, hornblende, fragments of gneiss, black 

 mica, silvery mica and shorl. The surface veins run East and West, 

 and present the ore in irregular masses of f of an inch broad, so much 

 corroded by atmospherical influence as to appear as a soft friable 

 red, yellow, liver-coloured or garnet-coloured earth, but upon digging a 

 couple of feet below the surface of the country, the veins become a 

 compact liver-coloured mass, spangled with shining particles of copper ; 

 the whole enclosed in a soft friable apple-green, yellow or white fel- 

 spathic rock. Traversing the copper from North to South small veins 

 of lead appear, which occasionally form the containing walls to the 

 copper. I traced the vein of copper for about 1 00 feet East and West 

 and dug to the depth of two feet only. I have smelted with the aid of 

 coal, dug from the Banslee Kullah in the Rajmuhal hills, some of the 

 ore, which has given a return of 30 per cent, of good copper ; inferior 

 specimens, mostly waterworn pieces, picked up on the surface, gave 25 

 per cent. I have sent a large amount of the specimens, together with 

 the smelted ore, to Mr. Piddington, Curator to the Geological Museum 

 attached to the Asiatic Society, and have requested that gentleman to 

 furnish you with a detailed account of its value, purity, &c. and which 

 will form an addendum to this report ; Mr. Piddington from his ability 

 to do justice to the subject, and from his willingness to assist in such 

 matters will, I am sure, supply you with his report. A copy of this 

 report has been sent to Mr. Piddington. 



