THE ADIRONDACK GRAPHITE DEPOSITS 



In 191 2 the following grades were made. 



GRADE 



97 



PRICE 



PER 



put \|) 



Pulverized flake. . . 



No. 1 flake 



Stove-polish grade 

 Foundry facings . . 



15 cents 

 9 cents 

 6 cents 



3 £ cents 



The Flake Graphite Company 



(Formerly the Empire Graphite Company) 



This mining district is in the township of Greenfield, Saratoga 

 county, 2 l /\ miles west of Porter Corners, just west of the HofTmans 

 fault. The location is indicated by crossed hammers on the geologi- 

 cal map of the Saratoga quadrangle. 1 



Workings. The principal working is an open cut extending east 

 and west along the northern slope of a spur of the main ridge. 

 " The outcrop of the beds strike nearly east and west and is marked 

 by a slight depression in the easterly sloping ridge. [The graphitic 

 schist] is traceable for 1500 feet or more from the present mine 

 openings, which are on the eastern end of the outcrop." 2 From 

 this open cut three inclined slopes have been driven following the 

 dip of the graphitic bed into the hill. The main slope has an initial 

 dip of 32 due magnetic south, which increases until a dip of 48 is 

 found at a distance of 207 feet from the portal. At this depth cross 

 cuts lead to the bottom of two parallel back stopes. At the distance 

 of 30 feet from the present bottom another back stope has been 

 driven from the east wall of the slope. About 50 feet from the 

 portal one of the parallel slopes curves and joins it. Several drifts 

 farther east that were driven by the Empire Company will be 

 abandoned by the Flake concern. 



The present inclined drift has a defective hanging wall for 50 feet 

 or so that allows a large amount of seepage, causing a wet mine. 

 The first few feet present a solid roof but this gives way to porous 

 and fractured rock with some loose gravel. This necessitates 

 timbering and the employment of tin gutters. It was found that a 

 stream formerly had its course on the hill slope above the drift. 



1 Cushing, H. P., & Ruedemann, R., N. Y. State Mus. Bui. 169. 



2 Newland, D. H., N. Y. State Mus. Bui. 161, p. 34. 



