IRON ORES OF THE CLINTON FORMATION 63 



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I 9.47 4.39 J y 2.47 

 H3O J L2.77 J 



Loss 439 .171 554 



99.676 100.000 100.000 100.85 100.000 



Iron 48.42 30.08 56.37 44.1 50.68 



Phosphorus .754 .67 .541 .65 .915 



Analysis no. i was made by C. H. Smyth jr. No. 2 relates to 

 the bottom tier of oolitic ore from the Franklin mine; J. B. 

 Britten, analyst. No. 3 is from the same mine, by J. B. Britton. 

 No. 4 is an average analysis of ore from the Franklin and Clin- 

 ton mines made by A. H. Chester in 1873. No. 5 is from a 

 sample of ore from the Clinton mine, J. B. Britton, analyst. 

 With the exception of no. i which is taken from the report by 

 John C. Smock, the analyses are quoted from Putnam's paper 

 in the Report of the Tenth Census. 



The variations in the iron percentages shown by the analyses 

 are extreme and may be ascribed to lack of uniformity in taking 

 samples. The ore as roughly mined will run about 40^'??; the 

 average return during the last period of operations is stated to 

 have been 40.27^. By removing the rock parting the content 

 can be raised to 45;^. The median 12 inches or so of the oolitic 

 bed will assay above 50^. 



The red flux bed has been analyzed by E. C. Sullivan^ with 

 the following results: 



Fe.Og 30.24 



SiO, 8.7T 



Al,6, 3-67 



CaO 20 . 64 



MgO 7M 



SO3 15 



P2O, 75 



CO2 24.78 



[^ »Eckel, E. C. The Clinton'Hematite. Eng. 8t Min. Jour. Mayrxi, 1905.' p. 897. 



