596 



CLARENCE N. FENNER 



large blocks free from streaks and bands of dark-colored minerals. 

 This objectionable feature probably led to the abandonment of the 

 workings. Recently another company has taken hold of the prop- 

 erty and without attempting to do much work at the old site 

 they have gone several hundred feet up the ridge, at the base of 

 which the old quarry lies, and have exposed great masses of granite 

 of the same composition as before, nearly free from inclusions. 

 Extensive operations are now being undertaken at this point. 



Fig. I 



In the Annual Report of the State Geologist of New Jersey for 

 igo8, in an article on the building-stones of the state, J. V. Lewis 

 gives an excellent description of the macroscopic and microscopic 

 characteristics of the rock and some information regarding the field 

 relations. It is evident that he recognized the intrusive nature of 

 the granite into the gneisses of the region, but he does not enter into 

 any extended description of the details and results of the process. 



At the quarry itself and in the immediate vicinity two rock 

 types are found, differing greatly from each other structurally. 



