ADIRONDACK MAGNETIC IRON ORES 



123 



Fe 2 3 . 

 FeO.. 

 Si0 2 .. 



s 



P,O s . 



A1 2 3 . 



MnO. 



CaO.. 



MgO.. 



Iron 



Phosphorus . 

 Manganese . 



42 



•157 



2 3 



.096 



23 



•34o 





038 





•433 



4 



.791 





. 129 



4 



. 700 



1 



•643 



100 



•3 2 7 



47 



374 





189 





100 



56 



•559 



23 



•3i3 



13 



. 700 





tr. 





• 2 °5 



1 



.900 



4 



•39o 



100 



.067 



55 



779 





o95 



From samples collected recently from the mine dump, the fol- 

 lowing percentages were obtained, No. 1 being a sample of the 

 rich ore and No. 2 of leaner material: 



Iron 



Silica 



Titanic oxid 



Sulfur 



Phosphorus . 

 Manganese. 



56.10 



34.20 



13-85 



34.08 



nil 



. 20 



.015 



•033 



.156 



.031 



•05 



.04 



Aside from its richer character, the principal feature of the ore 

 from this mine, as compared with that from the other workings 

 of the district, is the relatively high phosphorus which as will be 

 observed exceeds the maximum admissible in Bessemer ores. 

 It is largely for this reason that the present company has not 

 continued exploitation of the ore body. 



A magnetic survey of the ground about Parkhurst shaft carried 

 out in 1906 affords strong evidence for the regularity and con- 

 tinuity of the deposit for a distance of at least \ mile to the north- 

 east of the old workings, while to the southwest the lines of attrac- 

 tion continue without break to the Williams mine and the main 

 group. There is reason for believing also that the deposit here 

 is above the average in thickness. This is indicated by the results 

 obtained in the shaft itself, and is further supported by the record 

 of a drill hole put down about a half mile to the southwest. The 



