164 NEW YORK STATE MUSEUM 



writer the following account of it. "The molybdenite is found in a 

 green pyroxene rock which has been prospected in a small way for 

 copper. There are few indications of copper, although the rock 

 carries considerable pyrite in thin lenticular bands. Molybdenite 

 occurs in disseminated flakes and aggregates of flakes, some of which 

 attain a size of an inch or so in diameter and an eighth of an inch 

 thick, but mostly are much smaller. The mineral seems to be 

 rather sporadic, and at best too sparsely represented to justify 

 mining operations. The occurrence belongs to the contact type, as 

 the pyroxene country rock is the result of alteration of limestone by 

 granite, being in fact enclosed by a body of granite gneiss that no 

 doubt has been the agency of metamorphism and introduced the 

 metal. The wall rock is traversed by veins of a coarse phlogopite- 

 pyroxene material which seems to be free of molybdenite. The 

 property in which the prospect lies is just south of Boyd pond, near 

 Russell, and is owned by Martin Leary." 



In the course of field work in the northern part of Lewis county 

 A. F. Buddington discovered a new molybdenite occurrence, of which 

 he has given the following details. " The locaHty is on the farm of 

 William J. Aucter, in the town of New Bremen, three-fourths of a 

 mile southeast of Bushes Comers. It is reached most conveniently 

 from Croghan, the terminus of a branch railroad from Lowville. 

 The mineral is distributed through the mass of a granite intrusion, 

 or rather within indefinitely bounded veins of pegmatite that occur 

 in the granite. The latter rock has a gneissic appearance and 

 weathers to a reddish color, but is green to pink on fresh surfaces. 

 It may represent a phase of the green syenite that outcrops to the 

 northwest of the described locality. Altogether four narrow pegma- 

 tite bands were noted, each scarcely more than one inch wide, 

 exposed on the face of a sloping ridge for a distance of 2 5 feet. The 

 flakes are relatively coarse and will average from one-quarter to 

 I inch in diameter. Traces of the mineral are found at other points 

 along the same ridge. A hill of coarse red gneiss, one-half of a mile 

 south of Stifts schoolhouse, west of the highway, also shows its 

 presence. The locaHty is one that deserves more careful investiga- 

 tion and possibly some exploration in the hope of uncovering larger 

 veins of pegmatite than those exposed, which on the whole are 

 fairly rich." 



An occurrence of molybdenite on the Owens farm, now a part 

 of the Stuyvesant Fish estate, north of Peekskill, caiiie to the 

 writer's notice a few years ago. The locality is just south of the 

 Catskill aqueduct on the west side of Sprout Brook valley. The 



