52 



According to Mr. Alex. Murray, of the Geological Survey of 

 Canada, who made an examination of the location in 1848, "No 

 true vein can be discovered, but the ore occurs at the contact of quartz 

 ose and chloritic slates with diorite, as bunches and strings of pyritous 

 matter, interlaminated irregularly with the slates, and distributed in 

 specks and patches in the diorite. Abundant evidence of disturbance 

 is displayed in irregularities of dip and intrusion of the diorite. The 

 material collected for assay was chosen as free as possible from copper 

 pyrites, but nearly two-fifths of the specimen consisted of earthy mate- 

 rials which might readily be separated by dressing," (See Report 

 Geological Survey of Canada, 1848-49, p. 42 — 45.) Dr. T. Sterry 

 Hunt, in his report on this ore, says that " the specimen is a steel grey 

 arseniuret, the species not determined, with white iron pyrites and 

 probably some arsenical sulphuret of iron. The mass, weighing 45 oz., 

 was reduced to powder and submitted to analysis, with the following 

 results : — 



Iron 24.78 



Nickel, with trace of cobalt 8.26 



Arsenic 3.57 



Sulphur 22.63 



Copper 06 



Earthy materials 40.01 



99-31 

 In the process of washing the ore, the earthy parts being removed by 

 washing, the composition of the ore in 100 parts, as deduced by 

 calculation from the above, would be — 



Iron 41-79 



Nickel and cobalt ^3)93 



Arsenic 6.02 



Sulphur 38.16 



Copper 10 



From the small proportion of arsenic the nickel must, in part at 

 least, be present in a state of sulphuret, a fact which is, indeed, made 

 evident by the spontaneous oxidation of the ore. The nickel from thjg 



