Graphite. 



Graphite of excellent quality is produced near Ticonderoga, 

 the deposit being controlled by the Dixon Crucible Company of 

 Jersey City. The mineral occurs in a mica schist and in crystal- 

 line limestone. It is used in the manufacture of pencils, crucibles, 

 lubricant and a variety of other purposes. 



Quartz. 



This material is quarried for pottery at Bedford, Westchester 

 county, and is shipped to Trenton, N. J. White quartz of Pots- 

 dam age which is quarried at Fort Ann in Washington county, 

 has been ground for use as a wood filler. It has also been used 

 at the Troy Iron Works for lining Bessemer converters and 

 similar refractory purposes. 



Glass Sand. 



The two chief sources of this material in New York are Ellen- 

 ville, Ulster county, and Durham ville, Oneida county. At the 

 former locality the quarries are operated by the Crystal Sand 

 Manufacturing Co. The sand is obtained from the Shawangunk 

 grit, which is crushed to exceeding fineness. Much of the prod- 

 uct is sent to the glass works at Corning. 



Large glass sand deposits of Quaternary age occur at Durham- 

 ville near Oneida Lake. They are operated by William Williams. 

 The sand is not as white nor as fine as that from Ellen ville, and 

 is used for the commoner grades of glassware. Much of it is 

 shipped to Lockport. The sand contains 97-'J7.5 per cent. Si. 02. 



