REPORT OF THE DIRECTOR AND STATE OTOLOGIST 11)02 rl23 



Diopsid 



Well formed crystals of green diopsid were collected from the 

 farm of George Foster, 2 miles east of Bigelow in DeKalb, during 

 the past year. The crystals occur in pockets and fissures in the 

 crystalline limestone of the Grenville series. A deposit existing 

 under similar conditions occurs on the Calvin Mitchell farm, 

 1% miles from Bigelow. These two deposits have been visited 

 by collectors and the material is sold for cabinet specimens. 



Garnet 



The Gouverneur Garnet & Lead Mining Co. opened a garnet 

 mine 3 miles north of Gouverneur during the past summer. The 

 garnet is to be used in the manufacture of sandpaper. It is the 

 variety known as almandite and occurs in a quartz vein in gneiss. 

 A garnet-bearing rock was found also % mile east of the village 

 of Colton. 



Graphite 



Numerous deposits of graphite have been discovered in St Law- 

 rence county during the past year. On the L. C. Smith farm. 3 

 miles southwest of the village of Canton, a shaft has been sunk 

 to a depth of 25 feet. The graphite occurs in veins and pockets 

 in a gneiss of the Grenville series. The graphite is of the foliated 

 variety and free from impurities. It has not yet been found in 

 paying quantities. This mine is controlled by W. Chamberlain 

 & Co. of Canton. 



Another graphite mine was opened by C. T. Holbrook, 1 y 2 

 miles south of High Falls on the John Lalone farm. The graphite 

 occurs in a gneiss of the Grenville series. The mine is not being 

 worked at present. 



Graphite was discovered on the William Perry farm 4 miles 

 southwest of the village of Canton. The deposit has been leased 

 by M. W. Spalding, of Rensselaer Falls. 



A deposit of graphite was found 1% miles southeast of Pope's 

 Mills in Macomb, on the Olds farm. About 100 tons of graphite- 

 bearing rock has been taken out. The deposit is worked by 

 Chamberlain, Jenks & Roberts of Canton. 



