THE MINING AND QUARRY INDUSTRY 



937 



Salisbury. The magnetite mine near Salisbury Centre, Herkimer 

 county, was a small producer of ore in 1904. The deposits had 

 been worked previously, but never on a large scale. They are 

 lens-shaped bodies in syenite country, with basic hornblende gneiss 

 as the immediate wall rock. The nearest point of shipment is 

 Dolgeville, the terminus of a short railroad running north from 

 Little Falls. 



The Hematite mines. The production of hematite last year was 

 confined to a single locality in St Lawrence county and to two 

 localities in the Clinton deposits. 



The Rossie Iron Ore Co. has opened three mines in the vicinity 

 of Spragueville between Gouverneur and Antwerp. The ore occurs 

 in the form of lenticular masses associated with crystalline lime- 

 stone' and serpentine. It carries from 40 to 45% iron and as 

 shipped runs about 50%. A portion of the product is ground for 

 paint and mortar colors. 



The properties near Caledonia, St Lawrence co., formerly owned 

 by the Carney Ore Mining Co., have been taken over by the Hudson 

 Iron Co. and will be reopened during the coming year. They yield 

 specular ore assaying 48 to 50% iron. * 



The mines and furnaces of the Franklin Iron Manufacturing Co. 

 at Clinton, Oneida co., were closed down throughout the year. 

 The only ore produced at this locality came from the property of 

 C. A. Borst and was used in the manufacture of paint, largely by 

 the Clinton Metallic Paint Co. 



At Furnaceville, Wayne co., the Furnaceville Iron Co. continues 

 to work its mines in the Clinton formation. 



Limonite and carbonate mines. Though at one time of great 

 importance, the limonite mines in Columbia and Dutchess counties 

 have gradually succumbed to competition with richer and more 

 favorably situated districts. The Salisbury region of which they 

 form a part long enjoyed a high reputation for the quality of its 

 iron, which was used in gun forgings, car wheels and other materials 

 requiring great strength and tenacity. Even so late as 1883 there 

 were not less than 20 charcoal furnaces employing these ores. In 

 all some 25 mines have been opened and worked within the limits 

 of the two counties. The output of the ore for the census year 1880 

 was reported at 144,878 long tons. In 1904 there was only one 

 mine working which produced about 5000 tons. 



The Burden carbonate mines have been idle for the past three 

 years. From 1882 to 1901 they were operated by the Hudson 

 River Ore & Iron Co., which equipped them with a very complete 



