233 



The Iron was remarkably crystalline and brittle, and resem- 

 bled in color, pure antimony. Specimen No. 1. was crystal- 

 lized in broad lamellae, and cleaved readily into crystalline 

 forms when broken. 



Sp. Gr. was 7.684. This specimen was from Cooper's fur- 

 nace, in Eastern Pennsylvania. 



On analysis of 0.5 gramme of the metal the following results 

 were obtained, per cent. 



Iron, 91.10 



Manganese, ..... 5.76 



Carbon, 1.74 



Silica, 1.40 



100.00 



Specimen No. 2. was obtained from the furnace in Plymouth, 

 Vt., and was reduced from a brown Hsematite mixed wdth black 

 oxide of Manganese. The metal is highly crystalline, with broad 

 plates of crystals intersecting each other, giving the broken sur- 

 face of the pig the appearance of Meteoric Iron that had been 

 acted upon by acids. 



The specific gravity of this iron is 7.488. 



Selected crystals were analyzed, and the following results 

 were obtained. 



Iron, 83.2 



Manganese, ..... 9.6 



Carbon and Silica, .... 10.0 



102.8 



The following results were obtained by Mr. Richard Crossley, 

 on analysis of the one from which this iron is made. 



Insoluble silica and silicate of Alumina, 9.58 



Peroxide of Iron, .... 53.66 



Oxide of Manganese, . . . 31.17 



Alumina with traces of Cobalt and water, 5.59 



100.00 



53.66 of Peroxide of Iron contain 37.2 of Metallic Iron. The 

 ore does not contain any sulphur, phosphorus, or arsenic. 



