94 Canadian Record of Science. 



The mineral was recognized by its -well-marked physical 

 characters, and a determination of the water gave 10.23 per 

 cent. Eecently a specimen from the mouth of the Shuben- 

 acadie has been analysed by Mr. A. E. Shuttleworth, student 

 in applied science, with the following result : — 



Ferric Oxide 88-92 



Manganic Oxide 0*14 



Water 10-20 



Silica 0-32 



99-58 



The formula Fe 2 3 + f£ 2 gives, ferric oxide 89-89 per 

 cent. The specific gravity of the specimen analysed was 

 found to be 4"217 and the hardness 5. 



2. — Serpentine. 



I am indebted to Dr. Ells of the Geological Survey for 

 specimens of an interesting variety of serpentine from 

 Coleraine in the Eastern Townships. The mineral was 

 obtained at Fenwick and Sclater's asbestus mine, about a 

 mile and a-half from Coleraine station on the Quebec Central 

 Kailway, and according to Dr. Ells, occurs in irregular 

 veins traversing the ordinary massive serpentine of the 

 region. The veins are said to be generally thin, and to 

 sometimes contain a little mica and asbestus. When first 

 found, the mineral was quite soft, and could be readily 

 squeezed between the fingers as in the case of saponite, but 

 on exposure to the air, it soon became harder, and when 

 examined by the writer, had a hardness of about 3 \. It is 

 sub-translucent and has a resinous lustre. The colour, in the 

 specimens which I have seen, ranges from white to pale 

 apple-green, but thin fragments often have an opalescent ap- 

 pearance, and show reddish reflections like some varieties of 

 opal. This is best seen by gas-light. The fracture is 

 distinctly conchoidal. The specific gravity as obtained 

 without exhaustation of air was only 2-402 ; but on suspend- 

 ing the mineral in water in a vacuum, until no further escape 



