132 RURAL A/:TV YORK 



small commercial importance. The Clinton ores 

 from the Clinton formation are the most important 

 of this latter group and are related in geological age 

 to the famous ore deposits at Birmingham, Alabama. 

 No other metal assumes importance, although speci- 

 mens are found. 



Next to iron ore in value stands limestone, derived 

 from several formations in diiferent parts of the State. 

 Their total value is a little more than $2,500,000. 

 Blue stones for flagging and building, sandstones for 

 building and especially for abrasives are produced in 

 the southern and the western Catskill regions respec- 

 tively. Marble of several grades and colors is quarried 

 at Gouverneur and in the central Hudson Valley. 

 Slate for roofing occurs in Washington County where 

 it has been formed under the influence of metamor- 

 phism of shale in the same way as marble in that and 

 other regions was formed from limestone as a result 

 of great pressure and heat. Granite quarries are op- 

 erated in the eastern Adirondacks and trap rock 

 quarries in the Palisades district. Talc and soapstone 

 of high quality are secured at Gouverneur. The 

 Adirondack region also produces feldspar, a little vein 

 quartz, garnet and graphite. The production of 

 graphite by the mines in the Ticonderoga district 

 makes New York the leader in that product. The 

 garnets from Essex and Warren counties are used as 

 an abrasive. Peekskill, in Putnam County, is an 

 important center for the production of emery. 



Standing next to limestone in value is salt, which 

 may be regarded as a manufactured product. The 



