MINERALS FROM NEW CALEDONIA. 239 
the gossan of a copper-vein ; the iron oxide has apparently been 
formed at the expense of iron pyrites, since much of the schist is 
dotted all over with small rectangular cavities, pseudomorphous 
after iron pyrites. 
Balade mine 
Brown Heematite.—A. ‘specimen from Baie du Sud evidently of 
t 
size of the entire pseudomorph, made up of minute crystals of 
pale green-coloured sulphur, &e. 
Pyrrhotine.—The magnetic variety of iron pyrites (Fe,S,) 
collected by Mr. Pryor at the Balade mine. 
Massive, of a brown-yellow colour with metallic lustre, asso- 
ciated with copperpyrites and transparent quartz, which is diffused 
through the mass, just as is seen in some of the pyrrhotine from 
enmais in Bavari 
S.. 
In the form of fairly well developed cubes, both isolated and 
Chromite.—The deposit of chromite or chromate of iron, 
commonly kn : ‘ 
developed in New C edonia, as well as of extremely rich quality. 
_ The ore is met with in the form of alluvial deposits, as well as 
‘ situ in the serpentine and other rocks. I am informed that 
pi of these alluvial deposits are now being worked on a large 
e. 
