GEOLOGY OF THE MERRIMACK DISTRICT. 487 



very desirable stone is obtained. It was used in the construction of the 

 Episcopal church at Keene. 



On a road, now discontinued, south of Franklin mountain, there are 

 several outcrops of gneiss ; and a boulder was seen, containing iron ore, 

 evidently from this rock. At R. Weeks's, on the road south from school- 

 house No. 8 in Swanzey, the rock may be intrusive. Where this road 

 enters Winchester, at Naramore's mill, there is an interesting outcrop of 

 gneiss. The strata are nearly vertical, and dark bands are very distinct. 

 The mineral giving these bands their dark color is probably hornblende, 

 though there may be some tourmaline present. To the south-west, near 

 W. Hartwell's, these dark bands are also found. South-east, on the road 

 to Richmond, at B. Corliss's, and from school-house No. 3 to Sandy pond, 

 the rock is chiefly granite, but occasionally there are dark gneissic bands. 

 In Winchester, on the western slope of Second mountain, there is gneiss 

 nearly vertical, but dipping westerly. On the north-west side of Stone 

 mountain there are many outcrops with dark bands, as at Naramore's 

 mill, and this rock extends south to Peaked hill, where the strata are 

 vertical. Going west from the summit of Peaked hill, we have a mica- 

 ceous gneiss, and this extends northward along the west slope of Stone 

 mountain, two thirds of the way from the summit to the base. In this 

 rock, on Stone mountain, there is quite an extensive vein of rhodonite. 

 The locality can be discovered after finding a depression that in the spring 

 is filled with water ; — it is about five rods north-west of this depression. 

 West of this micaceous gneiss, on the ridge of Peaked hill, we have a 

 pyritiferous schist with an easterly dip, and in this are coarse granite veins. 

 Near the road is a hornblende schist, the dip of which is variable. East of 

 the micaceous gneiss of Stone mountain we have a fine-grained gneiss. It 

 outcrops just north of the cemetery; and where it is seen between the 

 cemetery and the village it contains a coarse granite vein. On the road 

 south-east from William Follett's, gneiss is the prevailing rock; but on 

 a road, now discontinued, south-west of Follett's, we have hornblende 

 gneiss. This contains an iron ore, which was worked to a limited extent 

 many years ago. 



