242 GRANITE. 



at Mussinet, near Turin ; so that its geological 

 position is doubtful. There are reasons for sus- 

 pecting that it may belong to the trap family. 



D. Schorl and quartz, sometimes with felspar. 

 Schorl rock of Cornwall ; and with the same geological 

 relations as granite. 



This might, perhaps, like th compounds 

 C,D>E, Div. 2d. have been enumerated in the 

 same place. 



