Wh 



Mineralogy and Geology of St. Lau-rencc Co., N. Y. 225 



9. Ochre yellow, very impure. 



10. Ferruginous quartz; purple tint, similar to that variety called 

 Bristol diamonds; occurs in cavities in the ore* 



The side of the hill where the mine is situated, has been opened 

 to a depth of forty feet. Many thousand tons of iron ore, were ob- 

 tained from this mine, when the works at Rossie were in operation, 

 and the quantity is apparently inexhaustible. It has also been traced 

 to a distance on the north west, and a quantity of ore obtained. 



One mile south west of Gouvemeur village, large rocks of felspar 

 and quartz may be noticed on the side of the road. At this locality 

 I discovered phosphate of lime ; one hexagonal prism, three inches 

 long and one inch in diameter. Quartz crystals, four inches long, 

 one inch in diameter ; in carbonate of lime, but not very perfect. 

 Calcareous spar, white and red. Magnesian carbonate of lime, 

 te augite. Scapolite, massive. Augite, in small crystals, well 

 characterized. Coccolite, dark green. Graphite and silvery mica/ 

 Tourmaline, brownish red, in crystals two inches in diameter. 



At Gouvemeur village, the bridge across the Oswegatchie river, 

 which is distinguished by the blackness of its waters, rests on a pier 

 of solid rock. The breakwater to this pier contains crystallized ser- 

 pentine and calcareous spar. It would however be difficult to ob- 

 tain specimens, as the inhabitants of the village would probably be 

 unwilling that the bridge should be endangered merely to gratify the 

 wishes of a mineralogist. 



On the east bank of the river, near the mill, a quarry has been 

 opened ; it contains the following minerals. Argentine. Serpentine, 

 disseminated in carbonate of lime. Coccolite, dark green. Ma<me- 

 site. Asbestos. 



For the following localities, I am indebted to Dr. Murdoch of 

 Gouvemeur. A petrifying spring occurs four miles north west of the 

 village ; the water which flows from it, covers the grass, moss and 

 roots in the vicinity, with carbonate of lime. Agaric mineral is found 

 two miles north of the village. Steatite, brownish black, on the farm 

 of C. Barrell. Calcareous spar, in laminated masses, two miles 

 north east of the village. 



In the town of De Kalb, quartz rock forms an extensive district of 

 country. White limestone is quarried and burnt into lime, one mile 

 north of the village near the mill. 



On a second tour from Heuvel to the east and south of the countv 

 of St. Lawrence, I noticed the following facts : — Silfckxis limestone, 





