860 



NEW YORK STATE MUSEUM 



CLAY 



The following table of clay analyses is probably the most corn- 

 number of different sources. The analyses are arranged under 

 clays, slip clays, adobe soils, brick clays, shales, paving brick clays, 

 the .clay whose analysis is given is available for only one purpose, 

 used for several different products. 



The constituents given, in nearly every instance, are silica, 

 water. In many cases titanic oxid, organic matter, phosphoric 



The following abbreviations are used. 

 a ferrous oxid 

 & lime carbonate 



Residual 





state and county 



Town 



Material 



SILICA 



Alumina 





i 



Com- 

 bined 



Free 



Ferric 

 oxld 



1 



Alabama: 

 Calhoun 



TyTorriRvillft .... . 



From Knox- 



ville limestone 



From St Clair 



limestone . . 







i3.17 



30.18 



20.47 

 19.64 



14 74 



31.76 



4.63 

 15.86 

 21.3 



36.43 



31.764 



18.98 





9, 



Arkansas 





55.42 



33.55 



58.63 

 61.66 



76.78 



53.03 



90.05 

 72.35 

 65.35 



54.54 



72.164 

 70.83 



8.3 



3 



Georg:ia: 

 Bartow 





1.98 

 S.58 



4 



Polk 





Caen stone... 

 From chert . . 



7.54 



n 



Kentucky: 

 Graves 





1.64 



fi 



Massachusetts: 

 Hampden 



Missouri: 

 Iron 



Lincoln 



Blandford 



R. R. cut at Tiptop.. 

 Morris shaft 



tr. 



7 

 8 





3.31 

 2.25 



<) 



lb 



Colbert 





2.05 



in 



North Carolina: 

 Wake 







9 04 



11 



Pennsylvania: 

 Lehigh 



Fogelsville 



From slate... 



.99 



13 



Wisconsin: 

 Wood 



Grand Rapids 



1.84 

















