G2 



PROCEEDINGS OP THE AMERICAN ACADEMY 



Date of Fall or Find. 



No. 



Found 1840. 



140 



144 



Weight 



in 

 Grams. 



451 



7,710 



70 



711 



9,980 



932 



Description. 



from it. The exterior shows a very 

 striking octahedral structure, and the 

 plates are separated by a thick foil of 

 Schreiberseit, which can be easily de- 

 tached from the iron. [Smith Collection.] 

 One polished face, showing charac- 

 teristic Widmanstattian figures, with 

 sections of bright nickel iron. The 

 exterior shows very striking octahedral 

 structure, and several of the octahedral 

 faces have been polished and etched, 

 showing no figures. Contains a very 

 large nodule of troilite. [Smith Collec- 

 tion.] 



Sevier County, found in 1845, but evi- 

 dently identical with Cocke County. 



Mass with two cut faces, one face 

 containing a large nodule of graphite. 

 The exterior shows beautiful octahe- 

 dral structure. [Smith Collection.] 



Nodule of graphite, formerly weighed 

 80 grams, but has been cut. Also nu- 

 merous other nodules of graphite, and 

 troilite. [Smith Collection.] 



Complete individual, containing a 

 large nodule of graphite, and showing 

 all the characteristic structure of the 

 Cocke County iron. This specimen 

 was presented to the Cabinet by Prof. 

 N. S. Shaler, and is reported to have 

 come from Lebanon Co., Tennessee, but 

 is evidently the same as the Sevier and 

 Cocke County irons. 



Coney Fork, Carthage, Smith Co., 

 Tennessee, U. S. A. 



Iron. Large mass of cleavage octa- 

 hedrons, with sharply denned faces and 

 edges, packed together like an aggre- 

 gate of large crystals of alum. [Smith 

 Collection.] 



This specimen shows six faces of a 

 rough octahedron, one of the faces hav- 

 ing an area of seven square inches. 

 One half of this octahedron has been 

 partially torn apart into numerous 

 smaller crystals, some of them an inch 

 or more in diameter; but though the 

 crevasses between the individuals are 

 in some places nearly a quarter of an 



