258 Proceedings of the Royal Society of Victoria. 



usually occurs as a massive or powdery crust on stibnite 

 and no crystals have come under my notice (W.). 

 Chabazite. — Hydrous silicate of aluminium, calcium, sodium and 

 potassium. 

 Narre Warren (R.). 

 Chalcopyrite. — Sulphide of copper and iron. 



Occurs associated with galena in a small quartz vein at 



Steele's Creek (W.). Mount Tara; Cassilis (CI.). 

 The occurrence of chalcopyrite in quartz veins is frequently 

 noticed, more especially in the eastern part of the 

 colony. It is often auriferous and sometimes very rich. 

 Chiastolite.— z'rtr. of Andalusite. 



Imperfectly formed crystals evenly distributed through a 

 siliceous slate, Thoona. Probably formed by contact 

 metamorphism (W.). 

 Chromite. — Chromium sesquioxide and iron protoxide. 



In grains and octahedral crystals. Jack's River, Alberton 

 (W.). Black and massive, Oorryong (M.Dt.). 

 Cinnabar. — Mercury sulphide. 



Found in small broken fragments on the surface near a 

 quartz reef, near Bullumwaal, Gippsland (M. Dalton). 

 Coccolite. — var. of Augite. 



The mineral recorded under this name is only common black 

 augite (U.). 

 Cohenite. — A carbide of iron and nickel. 



The physical properties of cohenite and schreibersite are 

 very similar, so that they are not easily distinguishable. 

 They are both less brittle, and their cleavage is not so 

 marked as in other meteorites. Beaconsfield Meteorite 

 (C.) Analysis : — 



Iron - - — 



Nickel - - — 



Cobalt - - — 



Carbon - - 5-51 



Phosphorus - — - 1-45 



Residue - - 16-32 - — 



