006 



NEW YOKK STATE MUSEUM 



Pipe clays 





State and county 



Town 



Remarks 



SILICA 



Alumina 





d 



Com 

 bined 



Freej 



Ferric 

 oxid 



1 



Pennsylvan'a {con.) 



Cannelton 



Butler 



Rapid Citv 





I 

 67.67 

 59.01 



74.32 

 63.59 



68.35 

 62.3 



18.28 

 21.77 



16.38 

 20.309 



12.96 

 19.17 



1 03 



9. 



Butler 



South Dakota: 

 Pennington 



Tennessee: 

 Knox 



10 73 



8 



Soft shale 



1 95 



4 



5 



Powell Station 



Fort Benton shale. 

 Clay 



a 2.953 

 6 44 



f, 



I i 



Shale 



6 88 















i 



