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. 
Zine 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 tale 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 g 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 lnmestone in the vicinity of the 
sulphide bodies is always heavily charged with silicates, mainly tale 
and serpentine. The.occurrences are usually close to some of the 
