DESCRIPTIVE NOTES OF QUARRY DISTRICTS AND QUARRIES 243 



The light stripping necessary to open the quarries, the 

 uniform thickness of the beds, the regular, vertical joints, 

 and the location on the lake accessible by boats, are notable 

 advantages. One quarry only Is now worked and that In a 

 small way. 



Plattsburgh, Clinton County. — In the vicinity of Platts- 

 burgh there are several small quarries In the Chazy lime- 

 stone which furnish stone for construction In the town. 

 The St. John's Roman Catholic church and the First Pres- 

 byterian church are built of this stone. 



South of Plattsburgh three and a half miles, the Burling- 

 ton Manufacturing Company has a quarry where a limestone 

 Is obtained, which Is known in the market as '' Lepanto 

 marble." It Is fine-crystalline in texture, gray to red in 

 color and takes a high polish. The specific gravity Is 2.709, 

 and Its weight per cubic foot Is 168.8 pounds. It contains 

 1.54 per cent only of matter insoluble in dilute hydrochloric 

 acid and 94.87 per cent of calcium carbonate. The absorp- 

 tion test showed 0.145 per cent of water absorbed. In 

 freezing and thawing there was no change, but at a high 

 heat the stone was fully calcined and crumbled to the touch. 



The stone has to be hauled by teams to the lake, one 

 mile east of the quarry. It Is dressed at the company's 

 works In Burlington, Vermont. 



The principal markets for It are Burlington and Platts- 

 burgh. 



Mohawk Valley 



In Schenectady county there are two small quarries on 

 the south side of the Mohawk river, and near Pattersonville 

 station, which are worked at Infrequent Intervals, for the 

 local market. They are in the horizon of the Trenton 

 limestone. 



Amsterdam, Montgomery County. — The BIrdseye lime- 

 stone and the Trenton limestone outcrops In the valley of 

 the Chuctanunda creek afford sites for quarrying building 

 stone, and four quarries have been opened north of the 



