952 NEW YORK STATE MUSEUM 



Production of stone in 1904 



Variety 



Building 

 stone 



Monumental 



Curbing 



and 

 flagging 



Crushed 

 stone 



All other 



Total 

 value 



Granite 



Limestone.. . 



Marble 



Sandstone. . . 

 Trap 



$89 300 

 248 647 

 278 994 

 637 607 

 a 



$11 262 

 154 673 



a 



$6 253 

 a 



902 027 



$83 295 

 994 475 

 a 



27 583 

 452 621 



$38 025 

 809 030 



45 104 

 329 480 



15 875 



$221 88a 

 2 058 405 

 478 77i 

 i 896 697 

 468 496 



Total. . . 







$1 254 548 



$165 935 



$908 280 



$1 557 974 



$1 237 504 



$5 094 251 



Granite 



The term granite, as here used, includes the crystalline rocks 

 generally, with the exception of trap or diabase which is treated 

 by itself. 



There are two principal areas where these rocks occur in New 

 York, the one being the Adirondack region and the other the 

 lower Hudson valley. Massive granites are much less important in 

 both areas than the banded or schistose types designated as gneisses 

 and schists; they are sufficiently developed, however, to afford 

 frequent sites for quarries. At present most of the granite em- 

 ployed for building, monumental and decorative purposes is 

 brought in from other states, as the local production is far from 

 meeting the requirements. 



In southeastern New York, the Highlands of the Hudson consist 

 almost entirely of granite and gneiss. Quarries have been opened 

 at numerous localities, particularly along the river where con- 

 venient transport facilities can be had. In Putnam county, 

 Breakneck mountain, just north of Cold Spring, supplies a medium 

 grained gneissoid granite which has been used extensively for 

 building material and crushed stone. At Garrisons a true granite 

 of massive character outcrops and has furnished building stone 

 to New York city. Farther south around Peekskill, there are 

 several quarries producing gneissoid granite. In Westchester 

 county granitic rocks are abundant and of varied character. One 

 of the principal formations is the Fordham gneiss, a well foliated 

 grayish biotite gneiss that has supplied much material for founda- 

 tions and rough masonry. The quarry localities include Hast- 

 ings, Lowerre, Bryn Mawr and Uniontown. The Yonkers gneiss, 

 more massive than the former and containing hornblende, affords 

 a durable building stone which is obtained at Dunwoodie and 

 Scarsdale, while a similar rock occurs at Hartsdale, Hastings, 



aSma 1 !, included under "all other." 



