THE ADIRONDACK GRAPHITE DEPOSITS 



107 



Quantitative microscopic analyses of the Graphite Products Cor poration's ores 





No. 783 



West end 

 of the 

 mine 



No. 787A 



The quarry 



ore injected 



with 



pegmatite 



No. 786 



The quarry 



ore free 



from 



pegmatite 



2 



Grapr 

 Biotit 





7.7 

 1.9 



trace 

 9.2 



73.2 

 5.8 

 1.2 

 1.0 



100.0 



Andesine 



7.9 

 .6 



2.8 

 30.3 

 55.2 

 trace 



3.2 

 trace 



100.0 



Microcline 



and 

 andesine 









>- 



Chlorite 



Feldspar 



Quartz 



Serpentine 



Pvrite 





s 





7 — 





- 3 





A 





«& 





S s 



TOTAI 



Specie 













0, 







to 



z 



M z 



tf -> K 

 a = S 



p 



Average 



Maximum 



. 70 c. 42 mm 



1 . 30 mm 



. 20 mm 



1.43x.70 mm 



4. 25 mm 

 . 45 mm 



.68x.41 mm 

 .80 mm 











z 



z 



M H 



r u 



H H 

 O w 



j a 



Average 



Maximum ' 



Minimum 



. 75 mm 



1 . 30 mm 



.30 mm 



. 77 mm 



2 . 00 mm 



.30 mm 





< 



H 



O 











C 

 a 



55 



z z 



« 



[/I 11 

 C/) H 



u u 



z a 



Hz 

 g 3 



Average 



Maximum 



Minimum 



.065 mm 

 . 120 mm 

 .030 mm 



.071 mm 

 . 150 mm 

 .031 mm 















Graphite Products Corporation concentrates 



Specimen n~> 



789a 



7 89 A 



789B 



Grade 



Mill 

 concentrate 



Finishing 

 mill no. 1 



Finishing 

 mill no. 2 





. 205 mm 



X 



.437 mm 

 . 600 mm 

 . 133 mm 



.372 mm 



X 



.677 mm 

 .924 mm 

 . 194 mm 



.268 mm 



Maximum diameter 



Minimum diameter 



X 



.451 mm 

 .831 mm 



. 233 mm 



Hague there is the possibility of another bed of the graphitic schist. 

 Climbing out of the depression upon the low ridge a view of the 

 quarry can be had. The rocks here are faulted and penetrated bv 

 pegmatite. A better idea of the conditions that prevail here can be 



