Section IV, 1918 [185] Trans. R.S.C. 



On Ferrierite, a New Zeolitic Mineral, from British Columbia; with 

 Notes on some other Canadian Minerals 



By R. P. D. Graham 



Presented by Frank D. Adams, D.Sc, F.R.S.C. 



(Read May Meeting, 1918) 



Ferrierite, a New Zeolitic Mineral from the North Shore of 

 Kamloops Lake, British Columbia 



During the summer of 1917, Dr. W. F. Ferrier collected some 

 specimens of a soft white mineral, in the form of spherical aggregates 

 of radiated blades, and having much the appearance and associations 

 of a zeolite. The mineral, however, presents certain features which 

 led Dr. Ferrier to believe that it might be a new species, but being at 

 that time engaged in field work for the Munition Resources Com- 

 mission, he was, through lack of facilities, unable to proceed further 

 with its identification. Specimens were accordingly sent to the 

 University of Alberta, and a determination of the blow-pipe characters 

 by Dr. J. A. Allan, together with a partial analysis made by Mr. 

 Kelso, only tended to confirm Dr. Ferrier's surmise. More and 

 better specimens were subsequently obtained, and, early in the 

 present year. Dr. Ferrier, with the permission of the Commission, 

 placed this material in the hands of the writer for examination. This 

 examination has now been completed, and the result, detailed below, 

 definitely establishes the mineral as a new species. The writer has 

 great pleasure in naming the mineral ferrierite, in honour of Dr. 

 Ferrier, the well known mineralogist and mining engineer, formerly 

 of the Canadian Geological Survey. 



Place and Mode of Occurrence 



The specimens were collected in a cut along the Canadian North- 

 ern Railway, about half a mile west of Mile Post 17, on the north 

 shore of Kamloops Lake, British Columbia. The north shore of the 

 lake is here underlain by rocks of the Kamloops Volcanic Group 

 (lower Miocene), which have a widespread distribution throughout 

 this district. This volcanic group consists mainly of surface lava 

 flows, tuff beds, and agglomerate accumulations, but as a result 



