:;ss 



(IKOLOUY OF THE DENVER BASIN. 



Analyses of fire-clays from the Denver Basin and from other American and foreign 

 localities for comparison.* 



Looalit; 



i Douvoi Fire Clay I !o . Den' er, Colo 



! u Illlam B Dixon u [bridge, N .1 



3 William n Berry, u lbridge,N. J.. 



1 Loughridge & Powers, W Lbridge 



5 Crossman Clay and Manufacturing 



CO l.'.n il.Hi Ki\ it, \ .1 



IS, !•' Roberta, pita neai 1 !fi ; l< '■■• L, 



N I , 



1 iv BTylton's firo-clay, Pensauken 

 Creel NT.J 



\i [neral Polnl dro-claj , near Johns- 

 ton n Pa 



*.i M Sai igi Sri 1 laj . tlounl Sa\ 



age Ud 



Soioto Star Fire Bi ick ' !o., Soioto< 

 v ill.., Ohio 



Portsmouth Fire Brick Co Porl 

 mouth, Ohio 



Fir. 1 lay, 1 Ibeltenham, Mo 



Glass pot olaj (strong), Stourbridge, 

 Worcester I lountj , England 



. !i ncible iii'. claj , Balifaz, ". 01 b ihire, 

 England 



Fir. claj Frankenthal- on -Rhine, 

 Germany 



I'm olaj Bollene, Dept. deVaucluse, 



10 



11 



u 



15 



16 



Fn 



id 



So3 



39. 184 

 31, 12 



10 BO 



42. 23 



in. I" 

 17.50 



11 'i 



50, 95 



IS in 



80, 50 

 B0 15 



11 BO 



13.64 



26. ;>5 

 35. 90 



.■1 ,,; 

 35.75 

 38.40 

 11 11 



18 B4 

 30.08 

 33.84 



39. in 



:;l ,; 



22.52 



32. 19 

 31.69 



28.19 



1 1 . 75 

 11 63 



13.59 



I ' ,:n 



12. SO 

 5.50 



12.50 



7.60 



12.28 



9. 18 

 11.80 



8, 30 



II 80 

 9.45 



10. 50 



II 



B4.524 



67. 70 

 89.20 



65.85 



85.90 

 91.80 



11 11 

 go "i 

 77. 58 

 97.98 



99. 02 



6 



61 : 



83, 11 

 B3.04 

 76 89 



1. 15 



14.95 



12.016 

 110.71 

 7.70 



1.90 



12. Ill 

 5.20 



56 80 

 1 . B5 



18.05 



14.20 



:u. or. 



11.80 

 0. no 



Hi. HI 



.;,• i.,,iii localities other than the Denver Basin are taken chiefij from " Report on Clays," Geological 

 rvej "I N'» Jersej 1878 Cwo, (fos. 10 and 11, are from Vol. V, Economio Geologj Geological Survaj of Ohio. 

 Employed in manufacture of all refractory produ. I 1 liemists' and assayers 1 supplies, furnaces, etc. 



aclal value for making cruoibles, ul..>- pots, and the more siliceous Bre brick.' 







Dducts. 

 Fire-brick and othei highly refractory products. 



I ... 11 -,'N 



..11. .mil , mi,], -i . aoe 1." 



u null and blast furnace brick. Bes( for Bteel works purposes oemented with Springfield kaolin. 



