ADIRONDACK MAGNETIC IRON ORES 121 



36.50 



64.72 66.695 



.019 



.010 .005 



.089 



.083 .104 



.256 



.250 



Iron . . 49-75° 



Phosphorus .025 



Manganese .162 



Titanium 



The small quantity of titanium shown in analyses Nos. 2 and 3 

 is interesting, though metallurgically negligible. It seems to be 

 carried by the mineral titanite which is intergrown with the magne- 

 tite. The phosphorus averages about .008 in the concentrates 

 now made. 



In the report by Putnam are given the following incomplete 

 analyses of furnace ore and concentrates. The latter were pre- 

 pared by jigging, a system of concentration formerly employed at 

 the mines. The sample of furnace ore (1) was an average of 22 

 carloads; that of concentrates (2) an average of 120 tons. 



1 2 



Iron 45-2i 66. 00 



Titanium nil pres. 



Phosphorus on .003 



The character of the gangue material, which in a way may be 

 regarded as closely allied to the country gneiss, is shown by the 

 subjoined analysis of tailings from magnetic treatment. The 

 analysis has been supplied by Mr Brakes. 



Si0 2 58.56 



A1 2 3 10.72 



Fe 2 3 4-57 



FeO 8.36 



MgO 4.06 



CaO 8.24 



Na 2 2.99 



K 2 1. 61 



H 2 12 



Ti0 2 457 



P 2 5 064 



MnO 124 



s o35 



99.910 



