Nickel Deposits. 135 
i+ 
+ 
z + 
tH 
yy, Beet 
Yen Setaspit 
2 
O 10 20 30 40 50m. 
| RU ee a 
Fig. 2:—Tsue MerrtnxsarrR MInEs. 
a.—Gneiss and Hornblende Schist. 
6.—Norite. 
The black portions are openings on pyrrhotite with 4 p. c. of Nickel. 
Nickel, cobalt and copper are present on an average in the 
ore in the proportion of about 100 parts of nickel to 25 to 60 
of copper and 8 to 10 of cobalt. These proportions hold 
good not only in the case of the numerous Scandinavian de- 
posits, but also in those of other parts of Kurope, as in Italy 
and Germany. This fact is of “high geological and 
genetic interest,’ as there seems to be some general law 
determining these proportions and it will be very interest- 
ing to ascertain whether they hold good in the case of the 
Sudbury deposits. 
In the nickel ore in a few places the mineral Pentlandite 
(Hisennickelkies) has been discovered and in a single case 
