56 NEW YORK STATE MUSEUM 



NAME LOCATION ; 



Granite Brick Co. Glens Falls 



Lancaster Sand-Lime Brick Co. Lancaster 



Newburgh Sand-Lime Brick Co. Newburgh 



Paragon Plaster Co. Syracuse 



Rochester Composite Brick Co. Rochester 



Roseton Sand-Lime Brick Co. Roseton 



F. W. Rourke & Co. Brooklyn 



Sand Stone Brick Co. Schenectady 



Schenectady Brick Co. Schenectady 



Watertown Sand Brick Co. Watertown 



SLATE 



Quarries of roofing slate are worked in Washington county near 

 th*e Vermont state line. The productive district includes a narrow 

 belt running nearly due north from Salem through the towns of 

 Hebron, Granville, Hampton and Whitehall. Efforts have been 

 made to work slate in other parts of the State, particularly in the 

 Hudson river metamorphic region, but for reasons no longer apr 

 parent they have not led to the establishment of a permanent indus- 

 try. Hoosick, Rensselaer co., New Lebanon, Columbia co., and 

 New Hamburg, Dutchess co., are among the places that have fur- 

 nished slate in the past. At the locality last named, beds were 

 found which yielded large blocks resembling the Welsh slate in 

 color and quality and adapted for structural material, billiard tables, 

 blackboards and other purposes. They were operated as late as 

 1898. 



The slate from Washington county exhibits a variety of colors. 

 Red is the most valuable and is the characteristic product of the 

 region. Owing to its rarity elsewhere, it has a wide sale and is 

 in constant demand for export. This variety is found near Gran- 

 ville and in the Hatch Hill and North Granville districts between 

 North Granville and Whitehall. Its occurrence is confined to areas 

 of Lower Siluric age. Purple, variegated and different shades of 

 green slate are produced from Cambric areas, principally around 

 Middle Granville, Salem and Shushan. The unfading green which 

 likewise commands a good price for roofing purposes, is quarried to 

 some extent in Washington county, but the greater quantity comes 

 from across the border in Vermont. 



Up to the present time the production of slate for other than roof- 

 ing purposes, such as mantels, billiard tables, floor tiling, black- 

 boards, etc., has not been developed to any extent in this section. It 

 is an important branch of the slate trade of Pennsylvania and Ver- 

 mont, and there is no doubt that increased attention to this branch 

 would greatly assist the advancement of the industry. 



