THE ADIRONDACK GRAPHITE DEPOSITS 



15 



The ore. The graphite rock appears to be the Dixon schist. In 

 general it is a quartz schist with feldspar, graphite, pyrite, apatite, 

 zircon and biotite. The ore from pits no. 1 and no. 2 is greatly 

 superior to any found elsewhere on the property. Here it is 

 essentially a quartz schist with 14 to 18 per cent graphite and a 

 surprisingly small mica content. On the west side of the valley 

 the ore that is exposed near the wood road is of poor quality with 

 a low graphite and a high mica content. There is considerable im- 

 provement, however, in depth, but no ore has as yet been encountered 







Quantitative 



microscopic analyses of the Smith ores 







SECOND 

 PIT 



900 



PATH 



SUMMIT 



OF 



ANTICLINE 



902 



PATH 

 5 FEET 

 BELOW 

 SURFACE 



902a 



PATH 

 3 FEET 



8 INCHES 

 BELOW 



SURFACE 



919 



HILL 

 12 FEET 

 BELOW 

 SURFACE 



920 



HILL 

 3 FEET 

 BELOW 

 SURFACE 



921 





14.6 



3.0 



14.0 



6.9 

 8.5 



7.8 

 13.0 



14 



6.1 



"S 



Biot 

 Chic 

 Feld 

 Qua 

 Pyr 

 Apa 

 Gar 

 Dio 

 Serf 

 Kao 

 Silli 

 Zirc 

 Hen 

 Zinc 



T 





4.5 



4> 





.3 



1.2 



82.3 



.2 



.1 











40.0 



14.6 



6.0 



.4 



12.0 



40.0 



26.0 



15.3 



.4 



31.3 



26.9 



20.0 



.3 





21.5 



rO 



rtz . . 





37.6 



c 





11.5 



29.5 





tite . 



.7 



§ 









s 











.3 





23.0 

 50.2 















ni 





.8 











1 





10.0 





.3 







= 





.5 









< 











1.3 





O. 













.2 



















< 



100.0 



100.0 



100.0 



100.0 



100.0 



100.0 









Graphit 

 Chemicj 





18.92 



2.94 





7.34 



12.6 



8.5 

























a 

 .2 



a 



a <° 



■" a 



IT 





1.31 mm 

 2.20 

 .44 



.52 mm 



.90 



.26 



.45 mm 



.70 



.30 



.59 mm 

 1.00 

 .33 



.77 mm 

 1.25 

 .32 





on 



09 



1 





.80 





.31 



1 









.3-2 



is 





.038 mm 



.060 



.010 



.048 mm 



.065 



.017 



.050 mm 



.100 



.012 



.034 mm 



.068 



.010 



.075 mm 



.200 



.040 



.039 mm 



'o 





.071 



OQ 



Minimum 



.015 









on the west limb of the anticline that equals the ore from the first 

 two pits. Furthermore, the ore on this side. of the valley has been 

 affected by the action of the igneous rocks which have penetrated 

 the ore in some places as pegmatite dikes which have developed, in 

 some local cases, traces of graphite by contact action. Specimens 

 from the bottom of a pit dug at the side of the wood road revealed 

 the presence of pyroxene (diopside) which has been developed by 

 contact metamorphic action, reminding us of the Rowland-Interna- 



