172 T. L. Walker — Temiskamite. 



sulphur percentage is very high. In the classification this new 

 mineral belongs to the dyscrasite group and to the basic 

 division of the sulphides.* 



The mine from which the material was obtained lies some 

 distance to the west of Cobalt, but as the mineral associations 

 are the same in both camps it seems probable that this new' 

 mineral should be found in the Cobalt mines if carefully looked 

 for. To indicate the region from which the first specimens 

 were obtained I suggest that this mineral be called Temiskamite 

 from the district of Temiskaming in northern Ontario. 



I wish to thank my assistant, Mr. H. Y. Ellsworth, for assist- 

 ance in connection with the chemical analyses. 



Royal Ontario Museum of Mineralogy, 



Toronto, Ontario, December, 1913. 



* Since writing the above, my attention has been called to the new mineral 

 Maucherite, recently described. This mineral has the chemical composition 

 represented by Ni 3 As 2 and is apparently closely related to Temiskamite. 



