ADIRONDACK MAGNETIC IRON ORES 105 



noteworthy, but seems to be traceable entirely to the presence of 



titanite. 



12345 



Iron 5 2 - 10 60.70 52.80 39.90 61.20 



Phosphorus. .012 .008 .029 .028^ .012 



Sulfur .035 .021 .035 .019 .026 



Titanium... .225 .495 .225 .225 2.076 



Winter mine. The mine is situated 1 mile northeast of Clinton- 

 ville near Lilly pond. There are three or more small bands of ore 

 outcropping in a course somewhat west of north and standing ver- 

 tically or nearly so. The main band is about 10 feet wide. It has 

 been worked by open-cast methods on the south end, while on the 

 north it has been followed by a slope which extends into the hill 

 for about 100 feet where it connects with an adit driven along the 

 course of a diabase dike from the east. Beyond the entrance of the 

 adit the workings are no longer accessible, but apparently the ore 

 body flattens out to nearly horizontal. The relations, however, are 

 obscured by the numerous dikes which intersect the workings. 

 Three of these are found crossing the main slope, the largest lying 

 along the axis of the adit already mentioned. The ore contains 

 much white quartz; an incomplete analysis is here given. 



Iron _. . 46 . 70 



Silica 32.75 



Sulfur .024 



Mace mine. This is based on a small deposit situated north of 

 the Winter mine. It has been worked principally as an open pit, 

 which has a length of about 500 feet. The width ranges from 3 to 

 10 feet. The ore is lean and, except for its larger proportion of 

 magnetite, resembles the wall rock. The latter is a hornblende 

 gneiss of granitic appearance. 



LYON MOUNTAIN MINES 



The Lyon Mountain or Chateaugay mines are in the town of 

 Dannemora, near the western border of Clinton county. The cen- 

 tral point of the group is Lyon Mountain, a settlement limited 

 almost entirely to mine employees and their families, situated on the 

 Lake Placid branch of the Delaware & Hudson Railroad, 37 miles 

 from Plattsburg. 



In size the mines are among the largest in the State. They are 

 widely reputed also for the high quality of their product. The ore 



