268 Proceedings of the Royal Society of Victoria. 



The analysis of Cranbourne No. 1 is the mean of three 

 analysis. The iron and cobalt analysis in the Beacons- 

 field failed, but cobalt was estimated at 0.80. 



See also note under taenite. 

 RuBELLAN. — An alteration pi-oduct. 



Hexagonal reddish plates derived from the decomposition of 

 olivine by hydration and oxidation of the iron. The 

 specimen is in the form of a volcanic bomb, Mount 

 Leura (W.). 

 ScHREiBERSiTE. — Phosphide of Iron and Nickel. 



Occurs as an irregular envelope round the troilite patches or 

 nodules, and also as independent cystals through the 

 nickel-iron. It is between tin and silver-white in 

 colour, and its specific gravity is about 1-\1. It can be 

 obtained as a coarse insoluble powder by treating the 

 crude nickel iron with hydrochloric acid till all action 

 ceases. It is magnetic, and dissolves readily in nitric 

 acid. 



Beaconstield meteorite (C.) ; Cranbourne No. 1 Meteorite 

 (F.) ; Cranbourne No. 2 and Langwarrin Meteorites 

 (W.). 



Analysis : 



In searching through the debris of the Cranbourne No 1, two 

 other phosphides were discovered. One, a large brass- 

 coloured oblique crystal, gave on analysis the following 



results : — 



No. I. No. 2. 



Iron - - - 69-251 - 69-843 



Nicker . . _ - _ 



Phosphorus - 15-420 - 16-666 



The other phosphide consisted of crystals apparently in the 

 form of square prisms, which, while the sides were quite 



1 Both deterunnations lost. 



