LIME AND CEMENT INDUSTRIES 815 



Silica .24 



Ferric oxid alumina .24 



Lime 22.43 



Magnesia 29 . 48 



Carbonic acid 47 . 73 



100.12 



In addition to the main belt of crystalline limestone mentioned, 

 there are a number of smaller areas, which are quarried at Bige- 

 low, Brasie Corners, Crary Mills, East Pitcairn, Hickory, and 

 Rossie. 



That from Rossie which is quarried by C. "Williams & Go. is 

 used by the Dexter sulfite pulp and paper co. ; which made the 

 following analysis of the lime. 



Lime 91 . 72 



Magnesia 7.52 



Ferric oxid and alumina 38 



99.62 

 Saratoga county 1 



The limestones are mostly Calciferous, though some Trenton 

 occurs. Owing to their irregular distribution and faulted rela- 

 tions, the occurrences can be best determined from the accom- 

 panying map. Most of the quarries are located in the Calcif erous, 

 but there are also some excellent exposures of Trenton, fully 

 equal to those along the Hudson river at Glens Falls. 



The composition of some of the Calcif erous beds may be judged 

 from the analysis given below. At Sandyhill, both the Cal- 

 ciferous and Trenton limestone occur. The Calciferous is quar- 



i Darton, N. H. Geology of the Mohawk valley, in Herkimer, Fulton, 

 Montgomery and Saratoga counties, (see 47th an. rep't N. Y. state mus. 

 p. 603) 



Preliminary description of the faulted region of Herkimer, Fulton, 



Montgomery and Saratoga counties, (sec 14th an. rep't N. Y. state geol. p. 33) 



Mather, W. W. Geol. 1st dist. N. Y. 1843. 



