REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1903 181 



has been steadily replacing that of native sulfur. It is at present 

 mined in but one locality in New York, though it is widely dis- 

 tributed in small deposits. Two minerals are included in the 

 term iron pyrites: the common bisulfid of iron or pyrite and the 

 orthorhombic iron bisulfid which is known as white iron pyrites 

 or marcasite. 



Pyrite is frequently mistaken for gold, owing to its brassy color 

 and brilliant metallic luster. The principal localities in New 

 York are: 



Hermon^ St Lawrence co. This deposit is situated in a belt of 

 crystalline limestone about 5 miles south of Canton and near the 

 town of Hermon. The ore is a massive pyrite, containing 38^ to 

 40'^ sulfur and 2.75^ copper.^ The mines are now being operated. 



Antliony's 'Nose, Westchester co. A deposit of massive pyrrho- 

 tite situated on the north slope of this mountain was formerly 

 mined, but has been abandoned for some time. 



Philip's ore hed, Putnam co. This constitutes a vein of mag- 

 netite of considerable extent in gneiss and was traced by Mather^ 

 for a distance of about 8 miles along the crest of the east ridge of 

 the Highlands in the towns of Putnam Valley and Phillipstown. 

 It was formerly worked at a number of places for magnetic iron 

 ore. The limestone which here lies next to the gneiss carries 

 considerable pyrite. 



Deposits of a similar nature also exist at Paterson, 5 miles 

 southeast of Oarmel, and near Ludington mills in Putnam county. 



Wurts'boro, Sullivan co. Pyrite occurs in this locality in 

 cubic crystals associated with galena, sphalerite and chalcopyrite. 

 The mine which was formerly worked for lead was abandoned 

 about 12 years ago. 



Root, Montgomery co. A deposit of massive pyrite associated 

 with galena occurs at Flat Creek in this town about IJ miles 

 southeast of Spraker's Basin. The deposit was formerly worked 

 for lead, but was soon exhausted. 



^U. S. Geol. Sur. 1883-84. p. 879. 



^Beck. Natural History of New York. p. 10, 



