242 BULLETIN OF THE NEW YORK STATE MUSEUM 



polish and Is jet black. Its specific gravity Is 2.718 and Its 

 weight per cubic foot 169.4 pounds. According to analysis 

 It Is a magnesian limestone, carrying a high percentage 

 (30.18) of matters Insoluble In hydrochloric acid. The 

 percentage of water absorbed Is relatively low, 0.08. The 

 specimens remained unchanged In the tests by alternate 

 freezing and thawing. At a high heat (i2oo°-i400°) the 

 stone was calcined and crumbled to the touch. 



For tiling it is particularly well adapted, as It does not 

 wear slippery. It is worked up at a mill at the quarry, and 

 tiles, shelves, mantels, lintels, coping-stones, wainscoting, 

 billiard-table tops and material for all inside, decorative 

 work are cut. Among the examples of Inside work, the 

 building of the Equitable Assurance Company, Broadway, 

 New York, Is perhaps the best. The market for it Is all 

 over the country. 



The quarry is at the side of the Champlain canal (feeder) 

 and one-half mile from the Delaware and Hudson Canal 

 Company's railroad. 



Whitehall, Washington County. — The quarry of the 

 Arana Marble Company at the side of the railroad, about 

 half way between Whitehall and Fair Haven, has not been 

 worked except for stone for flux to iron furnaces. 



Crown Point, Essex County. — The quarries In this town 

 have not been worked recently. 



Willsborough Neck, Essex County. — The Chazy limestone 

 underlying at a slight depth the surface on this Neck, has 

 been opened in two large quarries. A large business was 

 done in 1854 and onward for about twenty years, and much 

 of the stone was used in the foundations of the capitol at 

 Albany, and In those of the New York and Brooklyn bridge- 



The stone can be seen in the Reformed church, Swan 

 street, Albany, and in the State Street M. E. church in 

 Troy. It has been known In the market as " Lake Cham- 

 plain bluestone." The stone is light-blue In color, weath- 

 ering to a light-gray. 



