Genth.] 



92 



[Feb. 6, 



30.56 Metallic Iron. 



= 0.12 Phosphorus. 



Old Cut North of Gatesburg. * 



A peculiar looking amorphous ore, of a brown and yellowish-brown 

 color, uneven to subconchoidal fracture, dull or of slight waxy lustre, 

 inclining to resinous. It has a strong argillaceous odor when breathed 

 upon. 



The composition of the one specimen, which I received for examination, 

 was found to be : 



50. 14 Metallic Iron. 



100.00 

 100 Iron contain 1.43 Phosphorus. 



0.73 Phosphorus. 



The amount of metallic iron in the calcined ores is as follows : 



No. 1. East Pennington Bank. 51.49 per cent. 



" 2. West Pennington Bank 57.07 



" 6. Rumbarger Bank 59.08 



" 11. Lytle Bank 65.30 



" 14. Bull Bank — a, fibrous ore 66.25 



" <' " " —5, average 59.41 



*Mr. Piatt's Station 568. 



