/6 NEW YORK STATE MUSEUM 



Inclusions in the ore. In the main pit two or three lens-shaped 

 masses of a tough green rock lie in and split the ore. These are 

 known to the miners as "nuts," a very good descriptive term because 

 of their resemblance to almonds in shape. These rock masses are 

 often 10 feet long and 4 or 5 feet thick. Microscopic study of 

 specimens taken from one of them shows that they are probably due 

 to contact effects of an igneous rock upon the ore. It is very likely 

 that they will be encountered as further development is undertaken. 



Mining operations. Today the mining is confined to an open cut 

 near the eastern limit of the outcrop. The ore is loosened by 

 blasting, the large blocks being broken up by sledge hammers and 

 loaded into self-dumping cars. These are run upon a turn-table and 

 placed upon the main inclined mill track. The cars are then hauled 

 directly into the mill by a cable system. Near the western end of 

 the main pit a curving drift is being driven which will eventually 

 follow the strike to the west. 



Milling practice. The ore is passed through crushers, hence to 

 two banks of California stamps. From there the pulverized rock is 

 fed to a series of conventional buddies. The concentrates from 

 these are then treated upon Wilfley jig tables; the final grading is 

 accomplished upon revolving silk reels, using no. 8 silk. The con- 

 centrates are then dried and ready for shipment. The size of the 

 concentrates, samples of which were furnished by Hooper Brothers, 

 was measured and is tabulated above. Constant improvements and 

 modifications in the mill and its equipment are under way and like- 

 wise plans are being made to increase the tonnage capacity of the 

 mine and mill. 



Economic summary. It is very apparent that the prospects of 

 this property are unusually bright. There is every indication that a 

 large supply of flake graphite may be expected from this mine. 



The Champlain Graphite Company 

 Location. This property is situated in the township of Dresden, 

 Washington county, on the shore of South bay across Lake Cham- 

 plain from Whitehall. The property was first opened in 1904. 

 The company was organized in 1907, but the mine was operated only 

 a short time and is today abandoned. 



Mine. The mine consists of an open pit in the face of the abrupt 

 cliff. It is about 100 feet long and 25 feet wide and deep, partly 

 filled with water. This cut exposes a crush zone in the graphite 

 schist which is partly in fault contact with the metagabbro, evidently 



