102 NEW YORK STATE MUSEUM 



The existence of zinc ore on the Balmat property, in the south- 

 western section near Sylvia lake, has been known since the early 

 part of the last century and is probably the first to have been 

 discovered in this section. The property belongs to the Northern 

 Ore Co., but as yet has not been prospected to any extent. 



A deposit that must have been known for some time but has 

 escaped general attention occurs on the Streeter place, northeast of 

 the Balmat. It has the form of a vein or band outcropping along 

 the side of a low ridge which it follows apparently quite a distance. 

 The deposit has been prospected in one place and shows a width 

 of 4 or 5 feet. The ore resembles that at Edwards. 



There is a small showing of blende on the Tamlin place, near 

 the highway and east of the Balmat property. 



Zinc blende in association with a massive or earthy hematite is 

 found on the property of the Dominion Mining Co., near Sylvia 

 lake. The deposit was once worked for iron ore which was used 

 at the Fullerville furnace. The blende forms small grains which 

 with pyrite are found in seams and nodules within the iron ore, 

 but more specially along the contact of the iron ore and walls. 

 The opening was pumped out and explored to some extent during 

 the year. The company is mainly interested in talc which it has 

 uncovered on the same property. 



The existence of zinc blende is reported on the Cole place near 

 the Potter talc mine, but has not been confirmed by the writer. An- 

 other reported occurrence that could not be confirmed is on the 

 Sullivan place where blende and pyrite are said to have been found 

 in the excavation for the water power development owned by the 

 Uniform Fibrous Talc Co. 



On the road from Edwards to Fullerville, about two miles south- 

 west of the former place, there is a large outcrop of pyritic quartz 

 schist which is very noticeable on account of the stained and burnt 

 appearance of the ledges. On the McGill farm, nearby, crystalline 

 limestone is exposed in several places and has been found to carry 

 zinc blende. A prospect on a side hill south of the highway exposes 

 a strip of the limestone about 9 feet long and 3 feet wide which is 

 more or less charged with the sulphide. Another occurrence is 

 found a little north of this. The limestone has not been sufficiently 

 explored to indicate the extent of the mineralization. 



It is worthy of note that the limestone in the vicinity of the 

 sulphide bodies is always heavily charged with silicates, mainly talc 

 and serpentine. The occurrences are usually close to some of the 



