436 NEW YOKK STATE MUSEUM 



The gray limestone is sold in the rough for common wall work, 

 or cut into house-trimming material. 



The black marble is fine-grained and compact, hard and brittle, 

 but can be dressed in any style. It takes a brilliant polish and is 

 jet black. Its specific gravity is 2.718 and its weight per cubic 

 foot 109.4 pounds. According to analysis it is a magnesian lime- 

 stone, 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 (1200°- 1400°) 

 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 in a mill at the quarry, and tiles, 

 shelves, mantels, lintels, coping-stone, wainscoting, billiard table 

 tops and material for all inside, decorative work, are cut. Among 

 the examples of inside work, the building of the Equitable 

 Insurance 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 Cham plain 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 in iron furnaces 



Crown Point, Essex County. — The quarries in this town have 

 not been worked recently. 



Willsboro Neck, Essex County. — The Chazy limestone on 

 this Neck, has been opened in two large quarries. A large 

 business was done in 1854 and thereafter for about twenty years, 

 and much of the stone was used in the foundations of the 

 Capitol at Albany, and in those of the ISew 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 Champlain Milestone." 

 The stone is light-blue in color, weathering to a light-gray. 



The light stripping necessary to open the quarries, the uniform 

 thickness of the beds, the regular, vertical joints, and the loca- 



