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NEW YORK STATE MUSEUM 



and quarrymen often designate as granite widely different rocks 

 which may serve more or less similar purposes. Thus in the Adir- 

 ondacks not only granite, but syenite, anorthosite and various 

 gneisses have been quarried and sold as granite. The broader usage 

 will be followed here, so as to include practically all the crystalline 

 silicate rocks, with the exception of trap which, owing to its some- 

 what specialized industrial features, will be treated by itself. 



Granites and their igneous associates have a wide distribution 

 in the Adirondacks and are represented rather extensively in the 

 Highlands and in Westchester county. Some account of their dis- 

 tribution and present development for commercial use will be found 

 in the preceding issue of this report. It may be said that the quarry 

 industry in most localities is in a backward condition, neither com- 

 mensurate with the resources which are sufficiently varied to meet 

 most requirements for structural and ornamental granite, nor with 

 the large local markets which exceed those of any state in impor- 

 tance. As a consequence, most of the building, monumental and 

 ornamental granite for current use comes from the larger and 

 better equipped quarries in New England and the southern states. 



The production of granite for the last three years is shown in 

 the accompanying table. The figures are compiled from reports of 

 quarries operated for commercial purposes, but do not include the 

 output by contractors on road improvement work, as such produc- 

 tion is difficult to tabulate. The output in 19 12 had a value of 

 $202,096, against $148,633 in the preceding year and $244,763 in 

 1910. The largest item in the total was represented by building 

 stone with a value of $65,487, followed by crushed stone valued 

 at $49,307, rubble and riprap valued at $27,861 and monumental 

 stone valued at $19,130. The granite sold for various other pur- 

 poses was valued at $40,311. 



Production of granite 



Building 



Monumental ." . 

 Crushed stone . 

 Rubble, riprap 

 Other kinds. . . 



$244 763 



1910 



I9II 



1912 



$40 911 



12 989 

 91 988 

 20 272 

 78 603 



$30 684 



11 353 



72 401 



28 162 



6 033 



$65 487 

 19 130 



49 307 

 27 861 

 40 311 



$148 633 , $202 096 



