127 



On the hanging wall-side, at a distance of about 150 

 feet (45 m.) from the ore, ordinary schistose quartz por- 

 phyry crowded with phenocrysts of quartz and feldspar 

 is visible. At exposures intermediate between this and 

 the ore body, the rock gradually assumes a more schistose 

 habit. On the foot-wall side an analogous set of phenomena 

 is visible but the rock there appears to be a quartz - free 

 porphyry. 



The southern termination of the ore body has been laid 

 bare. The mass of ore ends in a number of angular, finger- 

 like projections extending a few feet into the country rock 

 and associated with considerable quartz. 



In the case of No. 1 deposit, the foot-wall is exposed 

 for a short distance. The rock, probably a much altered, 

 schistose quartz porphyry, is very heavily charged with 

 pyrite. It has a pronounced schistose parting along which 



#tefeat^3#^i 



Bathurst Iron mine. No. I orebody. August, 191; 



occur seams and veins of quartz. The boundary of the ore 

 body is remarkably sharp. The ore seems to end abrupriy 

 along the plane corresponding to that of the slaty parting 

 and banding in the ore, and of the schistose parting in the 

 wall rocks. 



The ore bodies have the form of abruptly terminating 

 beds or bands, with, in each case, a fairly constant thickness. 

 The walls where seen, are always sharply defined and dip 



