227 
Notes upon some Minerals from New Caledonia. 
By A. Liversiper, Associate R. S. Mines, Professor of Geology 
nd Mineralogy in the University of Sydney. 
[Read before the Royal Society of N.S.W., 1 September, 1880.] 
ve yet been able to work upon them ; it is not meant to be a 
general account of the minerals of New Caledonia. 
GOLD. 
Disseminated in fine grains and particles through a mica-schist 
much stained with red oxide of iron ; in parts of the rock pseu- 
domorphous cubical cavities are abundant, apparently left by the 
removal of crystals of iron pyrites ; the red colour of much of the 
schist is probably due to the decomposition of the pyrites, sesqui- 
oxide of iron has been formed, and the gold, which was doubtless 
held by the pyrites, set free. 
The bright red coloured schist is sometimes mistaken by miners 
for red oxide of copper, and for gossan. 
Gold is also met with in a talcose schist with quartz. ; 
~ocality : Fern Hill Mine, Manghine, Diihot River; also in 
auriferous pyrites at Niengneue. 
Copper. 
é 
the joints in rotten and much fissured quartz veins ; most of 
the fissures are about half an inch apart, and more or less at right 
angles to each other ; the metallic copper is accompanied by a 
- amount of the red oxide of copper or cuprite. Balade 
e. 
C Gossan.—Of the usual character, consisting of friable 
earthy red oxide of iron, containing a trace of copper mixed with 
more or less 
e and Sentinelle Mines. 
8 
