176 GEOLOGY OF OLD HAMPSHIRE COUNTY, MASS. 



of the eroded anticline. At A. and R. Hawk's house, farther south, around 

 the south end of Burnell's pond and on the east side of the fault, the rock 

 is a coarse, light-gray sericite-schist, very micaceous and tinged with green 

 from tlie scales of chlorite mingled with the mica. This schist is somewhat 

 feldspathic, and it carries subordinate intercalated beds of gneiss, bedded 

 granite, and quartzite. In the upper portion of the western side of Burnell's 

 pond, and overlooking it as a high blutf, an interesting bed stretches north 

 and south, which is wanting upon the other side of the fault. This is a 

 layer in the sericite-schist 30 feet thick, the upper part a very coarse, rusty 

 rock, made up of the brown cummingtonite in broad, radiated, interlaced 

 blades matted around deep-red garnets 1 to 2 inches across. There is much 

 pyrite disseminated in the rock. In its lower portion the rock is made up 

 of a ragged mass full of large garnets and separate nodules of quartz and 

 feldspar, with coarse mica layers wrapj^ed around them. This grades below 

 into the gray sericite-schist, as also above ; and in quartz veins in the schist, 

 immediately above, the linest cyanite is found. 



