112 NEW YORK STATE MUSEUM 



About 500 tones of rock have been taken out and a mill has recently 

 been completed." The property has laid idle for several years. 



It would appear that this deposit is of the very fine crystalline 

 form that usually is referred to as amorphous. Apparently the 

 metamorphism of the Grenville rocks has been less severe in the 

 northwestern Adirondacks than in the southeastern areas. Thus 

 the carbon has not been so completely recrystallized to graphite. 

 The material from the Macomb locality is well suited for certain 

 forms of lubrication, foundry work, etc., but is not crystalline 

 enough to be used in the manufacture of crucibles. It is understood 

 that the Macomb Graphite Company has, within recent years, 

 relinguished its holdings on the mine to the Popes Mills Graphite 

 Company, although it still operates the mill. 



Size of concentrate 



Average diameter. . . 

 Maximum diameter. 

 Minimum diameter . 



. 145 mm x . 202 mm 

 .42 mm 

 .09 mm 



The Rossie Prospect 



Beck 1 says that graphite " is thought to exist in workable quanti- 

 ties in the town of Rossie and elsewhere in St Lawrence county." 



" In St Lawrence county some attention has been given to a de- 

 posit occurring on the Indian river about 3 miles [probably south] 

 from Rossie village. The graphite forms the principal constituent 

 of a schist, through the body of which it is distributed richly in very 

 small scaly particles. It is a crystalline graphite, but too fine in size 

 to be easily separated. Trial shipments of the crude material were 

 reported to have given satisfactory results when used for foundry 

 purposes." 2 



The Smith Graphite Property 



This property was visited and mapped in detail during the summer 

 of 1 91 8 after completing the report on the Adirondack graphite 

 deposits. This deposit is situated in the township of Chesterfield 

 about 4 miles directly south of Clintonville and one-half of a mile 

 south-southeast of the southern end of Trout pound within the 

 limits of the Ausable sheet. 



Topography and physiography. The graphite schist occurs in a 

 narrow valley extending northwest and southeast as a side valley 



1 Beck/Nat. Hist. N. Y. State, pt 3, Mineralogy, 1842, p. 421. 



2 Newland, D. H., N. Y. State Mus. Bui. 120, p. 30. 



