METEORITES, N.S.W. 



351 



The composition, after the removal of the metallic part 

 by the magnet is given below ; this method also removes 

 some non-metallic matter, hence neither this nor the non- 

 magnetic residue is quite normal in composition. It would 

 probably have been better to dissolve the metallic portion 

 by means of mercuric and ammonium chlorides, but the 

 magnet process takes less time. 



Non-metallic part — mean of two analyses. 



Silica 41*673 



Ferrous oxide ... ... ... ... ... ... 15*656 



Ferric oxide 10*103 



Alumina 1*163 



Manganese traces 



Nickel *481 



Cobalt ... ... ... ... ... ... ... none 



Lime 2*708 



Magnesia 25*819 



Soda (Na 2 0) *613 



Potash (K 2 0) -087 



Sulphur 2*061 



Phosphorus *067 



100*431 

 Less oxygen equivalent to sulphur and phosphorus 1*164 



99*267 



The Metallic portion was found to contain : 



Insoluble in HOI 1*855 



Iron, metallic 81*108 



Nickel 8*527 



Cobalt -121 



Manganese none 



The sulphur, phosphorus and other constituents were not 

 determined. 



The metallic portion was fused with caustic potash to 

 remove entangled silicates etc., but as the fusion with 



