THE MINING AND QUARRY INDUSTRY I912 

 Production of stone in 191 1 



65 



VARIETY 



Granite. . . 

 Limestone . 

 Marble. . . 

 Sandstone . 

 Trap 



Total 



BUILD- 

 ING 

 STONE 



MONU- 

 MENTAL 



CURBING 



AND CRUSHED 



FLAG- J STONE 

 GING 



$30 684 $11 353 

 112 082 

 171 748 



327 587 



79 115 



$642 1 01 $90 468 



i 



$11 



526 074 



$538 063 



ALL 

 OTHER 



$72 4OI 

 I 936 292 



23 883! 

 896 164I 



$34 195 



113 798 



27 178 



182 562 



3 250 



$2 928 740 \$i 360 983 



TOTAL 

 VALUE 



$148 633 



3 174 161 

 278 041 



1 060 106 

 899 414 



$5 56o 355 



a Included under "All other." 



Production of stone in 191 2 



VARIETY 



BUILD- 

 ING 

 STONE 



MONU- 

 MENTAL 



CURBING 

 AND 

 FLAG- 

 GING 



CRUSHED 



STONE 



ALL 

 OTHER 



TOTAL 

 VALUE 



Granite 



Limestone 



Marble 



$65 487 

 108 581 

 155 411 

 363 055 



$19 I30 

 84 511 



$5 481 



$49 307 

 2 176 368 



$68 172 



1 220 015 



1 925 



256 54i 



$202 O96 



3 5io 445 



24I 847 



I 280 743 



483 863 



Sandstone 



Trap 



615 846 



45 301 



483 863 













Total 



$692 534 



$103 641 



$621 327 



$2 754 839 



$1 546 653 



$5 7i8 994 



a Included under 



"All other. 





GRANITE 









Granite, in the strict sense, includes the coarser-grained igneous 

 rocks which have quartz, feldspar and mica as their chief constitu- 

 ents. They are characterized by a massive appearance incidental 

 to an even distribution of the mineral ingredients, though by com- 

 pression during or after the period of consolidation they may de- 

 velop a parallel arrangement, in which case the term granite gneiss 

 is best applied to them. The feldspar of typical granite is an alkali 

 variety, either orthoclase or microline, but some lime-soda-feldspar 

 like oligiclase is usually present as well. Hornblende and more 

 rarely augite may accompany the mica or substitute for it. The 

 texture is even granular or porphyritic. 



The definition as given is rather narrow for commercial usage 



