ELISHA .MITCHELL SCIEXTIFIC SOCIETY, 



57 



blown b\' the water tronipe, and one hammer operated b\' 

 water-power. It is the only forge now in operation in the 

 State, and makes annnally abont twenty to thirty tons of 

 bar iron for local nses. 



IRON ORE. 



The total prodnction of iron ore dnring 1892 is esti- 

 mated at 23,433 gross tons, valned at $43,306.20 at the 

 mines. Of this amount 17,088 gross tons, valued at 

 $34,423.20, were shipped out of the State; the balance 

 w^as turned into 2,902 gross tons of pig metal. 



The only two mines in operation were the Cranberry 

 mine in Mitchell and the Ormond mine in Gaston countv. 



The Cranberry Mine^ operated b\- the Cranberry Iron 

 and Coal Company, produced 18,433 gross tons, valued at 

 $25,806.20 at the mines. Of this amount 12,088 tons, 

 valued at $16,923.20, were shipped to furnaces in South- 

 west Virginia. 



The ore is a magnetite, of which the following analysis 

 by Mr. Porter W. Shinier shows the quality of the run of 

 mine: 



Per Cent. 



Silica 23.73 



Metallic iron _ 45.90 



Metallicmagaue.se .. 0.44 



Alumina _-.._-. r.oi 



Lime . ,_. 9.69 



Magnesia - - ... 1.51 



Sulphur --- ... 0.012 



Phosphorus- . 0.007 



The total output of the Cranberry mine in gross tons 

 for the past nine years is shown in the following table: 



1884. 1885. 1886. 1887. 1888. , 1889. 1890. ; 18^1. I 1892. 



3,998 17,839 24,106 45,032 15,705 19,819 30,290 27,628 18,433 



