164 NEW YORK STATE MUSEUM 



Analysis No. 5 is of a sample taken across the face of the Sanford 

 pit. The ore here is, no doubt, above the average for the whole 

 deposit, and the first three analyses perhaps are more representa- 

 tive. It will be seen that aside from the Cheney pit all of the ores 

 are low in phosphorus and sulfur and well within the requirements 

 for Bessemer ores. 



MOOSE MOUNTAIN DEPOSITS 



Moose mountain is a prominent peak 3 miles north of Hammond- 

 ville, on the edge of the central anorthosite area. The deposits 

 occur on the shoulder of the peak, a little east of the summit, at an 

 altitude of about 2000 feet, as nearly as can be determined. They 

 were opened several years ago by the Crown Point Iron Co., in an 

 experimental way, but only a few hundred tons of ore have been 

 taken out. The trail to the mines leads up the eastern side of the 

 mountain, following the brook which empties into Paradox creek 

 below the outlet of Round pond. At the point where the trail 

 branches off, the outcrops are of augite syenite, but this rock 

 gives way a few hundred feet west to anorthosite, the contact being 

 marked by a garnetiferous zone which seems to be a metamor- 

 phosed phase of the syenite. Near the deposits gabbro appears 

 and forms the immediate country rock. It is doubtless a large 

 intrusion in the anorthosite. It has a strongly gneissoid texture 

 with much red garnet that has evidently formed at the expense of 

 the feldspar, and hornblende as the main dark constituent. 



The ore bodies consist of bands or lenticular masses striking 

 about northwest and apparently dipping northeast. The main 

 pit is perhaps 40 feet long and from 4 to 5 feet wide. The ore in its 

 prevailing character is but an enriched portion of the gabbro 

 averaging not more than 40 per cent in iron. The magnetite is finely 

 divided and is intergrown with pyrite. At one pit specimens were 

 collected which showed a more coarsely textured material above 

 the average in richness. The deposits appear to be of small extent, 

 judging from the limited areas of magnetic attraction surrounding 

 them. 



SPLIT ROCK MINE 



Split Rock mountain, on which the mine of that name is located, 

 is an offshoot of the Adirondacks forming the western shore of 

 Lake Champlain for some distance between Westport and the 

 village of Essex. It rises abmz'iiy from the lake level as a series of 



