Table 1. — Average miiwvl composition and 



properties of rocks for road making. 





Sampler 

 tested. 



™««, 

























Mineral composition, expressed 



in percentages. 















Physical properties." 



Rock varieties. 



Samples 

 tested. 





No. 



I 



1 



1 



1 



| 



1 



3 



a 



1 



| 



§ 





1 



a 



| 

 1 



i 



1 



| 



| 



1 



| 



a 



a 



1 



6- 



3 



< 



| 



| 



| 



2 



I 



a 



i 



f 



Ii 



I 



1 



1 



i* 



No. 





155 



50 

 43 



70 



29 

 231 



875 

 331 



53 



23 

 63 

 22 



13 





»29.5 



22 '.1 



H.O 

 0.5 



33. ii 

 45.0 

 7.1 



9.0 

 11.8 



6.9 

 3U.U 

 44.2 



7 '.9 

 2.7 

 28.4 

 10.0 



2.3 

 14.4 



35.3 

 31.3 

 46.0 



( 3 ) 

 12.6 



27.0 



8.8 



0.7 

 6.9 

 8.4 



2.7 

 10.0 

 8.8 

 4.0 

 3.5 



3.4 



0.2 

 0.4 

 0.1 



■ i-3 

 "J 





1.3 



3! 2 

 2.9 



0.5 

 6.9 



Ifl! 9 



8.2 



1.4 

 1.9 

 0.3 



2.8 



3! 3 

 2.5 



30.6 



3!4 

 3.8 

 3.8 



0.9 

 0.2 



o!2 



0.3 

 2.0 



(»>' 



0.6 



o!2 



0^4 



0.8 

 0.2 



0.5 



4.0 



5.4 



7^0 





0.3 



C 3 ) 





I 





2:1 



0.1 



0^2 



0-1 



3 



0.3 

 0.1 





1 















- 



18.3 



is! f» 



18.3 

 17! 7 



18.3 

 18.1 



17! 8 



18.' 3 



14.9 

 14^6 



18.' 2 



17.' 6 

 15.0 



is! 5 



13 



18 

 9 



17 

 19 



24 

 23 



74 



47 



38 

 30 



54 



33 



60 

 30 



24 

 37 

 23 



30 

 42 



32 





23 



■13 



70 



29 

 231 



18 

 42 

 17 

 23 

 68 



8 



















; 

 2 



1 



a 



2 

 3 



rs 



^7 

 93 



7-( 

 65 



; 

 : 



i 

 : 



a 

 2 



3 



3 



3 

 



7 



11 

 5 



3 



': 

 ■i 





















jlunmlrnijiv-granlto 



















1.1 























2?.' 5 





 2.3 

 20.0 



0.8 



<>> 



























11 

















































32.0 



3.2 



44.0 

 41.8 



2.8 

 1.0 

 48.0 



«.-!.« 



32.1 

 44.2 

 35.0 



3.0 

 0.5 



2.0 



1.3 

 2.6 



')' . 



» 



83.8 

 11.1 



3!o 



41.6 

 1.0 



o!i 



D.I 

 0.3 

 0.7 



7.9 

 81.6 



3.7 

 3.4 



o!o 

 9.0 



1.5 



15.4 



0.7 



o!7 



2.0 



39.3 

 0.4 

 1.0 



0.8 

 0.7 

 3.0 

 0.3 

 0.4 



3.1 

 14.4 

 2.0 



2.2 

 3!l 



C 3 ) 



0.4 

 9.4 

 12.5 

 20.6 

 11.8 







( ] ) 





C) 













1 

















0.2 























0.3 

 l.Z 



■-in 



L8 



0.8 







o'i 

 i!o 







0.4 













































0.2 











4.5 

 0.9 

 9.2 



1.6 



3! 5 

 22.5 

 0.9 

 0.6 



2.1 



0^8 

 0.1 



0.5 



1.6 



2.6 





























































O.S 



fi.O 

 6.3 

 79.1 

 3 o.4 

 Ifl.l 

 93.1 



37.3 

 31.1 



36.7 

 31.2 



2.' 6 



29.1 

 S3. 7 



29^4 

 5.9 





2.3 



0.3 







0.2 



« 



0.7 



































Limestone 





























































26.4 

 2.8 



32.1 



33 .'2 

 16.1 



13 !o 



3^2 



3.7 

 3.3 

 27.1 

 19.3 



0.3 







o!o 



0.1 



10.9 



o!o 



25.5 

 3.0 



o!2 



54.6 



C 1 ) 

 0.9 



L9 



28*.8 



6.8 



2.0 

 2.0 



70.1 



o!o 

 0.3 

 0.1 



0.6 

 0.3 

 2.1 



2!o 



OA 



4.8 

 3.2 

 2.2 







( s ) 





0.2 











":! 







<"> 













CaU-jrrmis s.m<lstono 



















0.8 







Calcareous sandstone 















< 3 ) 



0.7 

 0.2 



o!o 



0.3 



o!g 





o!i 

 0.3 



o!2 



o!3 



0.1 

 0.4 











<■) 











7(1 























2.8 











?1 



rnmi 



14.8 



3! 2 

 10.1 



11.7 



8.1 



( 3 ) 



0.1 

 3.3 



( s ) 

 44l8 



6.7 

 19.1 



13.0 

 37.8 



0.9 



u 









0.1 



'1.3 



■ i :i 

 ii :i 



ii 1 





Ml 











Granite neiss 



















If) 



it.) 











































11 1 











0.1 



60.fi 

 70.8 















(') 



















I) 3 































:;! 































0.6 





















ffl 





1.8 











S:j 

















m 





(») 



23.8 



15.4 



1.1 

 10^9 







28.5 











11 i 









;'■' 













! i.'l'l-|i.itl.ii-i|UurUito 











0.2 











li:lils;.;uii: L M|uartzlt« 













(■) 







0.2 





32 







05 



0.6 



■ „,■ 





















o!3 















;•) 









































::::: 



















































1 























1 For explanation of figures representing physical p 

 — Theinlormation given in this table is correct up to Tan. 1, 1914. 

 —Bull. 348—16. (To luuo page 2.) 



1 Figures in bold type 



e the essential minerals which are characteristic of the rock variety. 



