ADIRONDACK MAGNETIC IRON ORES 69 



The pit is now full of water and serves as a dumping ground 

 for refuse from the neighborhood. Putnam saw the mine when 

 active and states that 9 feet of pyritous ore was displayed in the 

 face. In old pillars a cross-section can still be seen of lean, horn- 

 blendic ore. Putnam's analyses of samples from two lots, one of 

 2500 tons from the north slope,^and one of 1500 from the south 

 yielded the following. The sulfur, however, was for some reason 

 not determined although it is the chief point of importance after 

 the iron. 



a 



Iron J5 .01 44.38 



Phosphorus . 047 .04 



The ore is of low grade but the phosphorus is also low. 



No. 3. Crag Harbor ore body. This is described by E. Emmons 

 in the report on the Second District, page 236, as occurring in a 

 cliff, 50 feet aboA^e the lake and half a mile below (north of) Port 

 Henry and as being the most conveniently located of all the ore 

 bodies in the region. It was 12 feet wide, in hornblende, and 

 dipped 35 west. The vein extended half a mile along the lake 

 but the ore was pyritous, tough and difficult to crush for the forge. 

 An analysis from Dr L. C. Beck's report on the Mineralogy of the 

 State, pages 15 and 37, is as follows: 



FeO 2^.5^ 



Fe 2 3 64.80 



Si6 2 . A1 2 3 , etc 8.70 



100.00 

 Iron 65 . 23 



This old deposit is no longer worked and has almost been for« 

 gotten. It occurs where the gabbros are a marked feature in the 

 Delaware & Hudson Railroad cuts and it may be titaniferous. 

 Since both Dr Beck and Professor Emmons speak of its difficulty 

 of treatment the titanium may be the reason. Little was known 

 of titanium in their time. 



No. 4. Cheever mine. This, the oldest opening in the region, 

 is situated about 2 miles or less north of Port Henry, and at its 

 eastern edge, outcrops rather more than a quarter of a mile from 

 the lake shore and about 300 feet above it. The chief workings 

 are just north of a small east and west depression, through which 

 a little brook passes into Lake Champlain, falling over a fine ledge 

 of Grenville limestone, one of the best exposures in the region. 



