QUARRY MATERIALS OP NEW YORK 95 



The Charles Clements quarry 



The Charles Clements quarry is situated south of the Ausable on 

 the shoulder of Ragged mountain, overlooking the village of Ausable 

 Forks. It yields a fine-grained syenite of darker color than that 

 from north of the river, though it is no doubt a part of the same 

 intrusion. The quarry is opened as a pit and thus is worked to 

 some disadvantage, though the depth is not sufficient as yet to 

 complicate the operations. The quarry belongs to Charles Clements, 

 a dealer in monumental stone, of Boston, v^ho has shipped the 

 product in the rough. 



Microscopically, the syenite in the area south of the river differs 

 considerably from the type described under the Moore quarry. The 

 syenite here is evidently a border phase of the intrusive mass, 

 characterized by fine grain, and a larger percentage of the dark 

 constituents, with reaction minerals like garnet. Owing to its fine 

 texture, it splits with a smooth or conchoidal fracture like a trap. 

 Along with the increase of the ferromagnesian minerals there is a 

 gain also in lime-soda feldspar which shares importance with the 

 alkali varieties. It is a basic phase of the syenite which in other 

 places in the Adirondacks may be observed to grade over into a 

 gabbro. 



The texture of the rock is even-grained, massive, showing no 

 trace of the gneissoid arrangement that often accompanies the basic 

 gradations. The jointing is at wide intervals and almost any size 

 of block can be quarried. There is no well-developed sheet struc- 

 ture, but a series of unequally spaced bed joints is present. 



The Carnes quarries 



The Carnes quarries, owned by F. G. Carnes of West Chazy, are 

 situated about one-half of a mile south of Ausable Forks on the 

 western continuation of the Ragged mountain exposure. They are 

 not as yet developed for supplying large quantities of stock, but have 

 been opened sufficiently to prove that there is material of good 

 quality. One quarry, called the Keystone, lies at the base of the 

 mountain, between the highway and the river. It yields a green 

 syenite of lighter shade than that from higher up the mountain. 

 The quarry lands in this location cover 35 acres. 



On the opposite side of the East branch the syenite appears again 

 along the slopes of a low ridge that is partly covered with terraced 

 sand deposits. The Emerald quarry is situated in this exposure. 

 The ledge affords a face from 15 to 25 feet high and about 400 feet 

 long. There is in all 300 acres in the property. The syenite is 



