ASSAYS OF LEADVILLE OEES. 



621 



Assays of various ores — The assays of the first divisiou of the following table were 

 made by the writer in June, 1880, for one of the smelters. The silver assays present 

 a certain interest, since they were made in crucibles, whereas the ordinary method of 

 silver assay at Leadville is that by scoriflcatiou ; the lead assays, however, are the 

 ordinary fire assays usually made in the region. 



The assays given in the rest of the table were made by the diflerent assayers 

 attached to the respective smelting works. 



Table II. 

 -ORE ASSAYS. 



Name of Diine. 



Adelaide (sandj . 



Do. 

 Do. 



Amie {special lot) ... 

 Amie (black lumps) 



Amift (lumps) 



Amio 



Do 



Do. 



Amie (lumps) 

 Amie 



Do 



Do 



Do. 



Belcher . 



Chrysolite . 



Evening Star 



Hibemia (clayish) . 

 Little Giant 



Virginius . 



Per cent. 

 15. 00 

 15.00 

 2C.45 

 54.90 

 21.45 

 9.45 

 45.80 

 0.50 

 11.30 

 . 31.70 

 1.70 

 1.50 

 42.00 

 7.00 

 2.00 

 5.80 

 6.70 

 0.50 

 17.00 

 1.90 

 5.65 

 6.!i0 

 19.30 

 27.50 

 44. 35 

 1.80 

 28.00 

 40.00 

 54.00 

 25.20 

 34.50 



Ounces. 

 47.70 

 30.00 

 8.80 

 12.60 

 12.00 

 34.16 

 23.30 

 36.00 

 78.00 

 1, 189. 70 

 31.40 

 31.20 



217. 30 



194. 85 

 37.35 



213. 80 



119. 95 

 76.80 



230. 90 

 36.25 

 33.10 

 39.50 



235. 30 

 55.90 

 99.05 

 33.05 

 41.10 

 62. 90 

 87.70 

 8.10 

 22.50 



Ounces. 

 None 

 0.85 

 0.05 

 0.10 

 0.10 

 0.05 



n.— ASSAYS MADE AT ELGIN SMELTER, AtTGUST, 1880. 



