NEW SOUTH WALES MINERALS, 223 
MENACCANITE. 
A variety of titaniferous iron ore. From near Uralla; found in 
the river deposits, by miners working for gold; in the form of 
black pebbles, with a sub-metallic lustre. 
Sp. gr. 4:44 
Analysis. 
Silica t sae Zee ie 9491 
umina ... 14°799 
Titanic acid 44°506 
Metallic iron 23°019 
Oxygen ... 81 
ime ee traces 
Magnesia traces 
100-000 
The iron exists in the form of both protoxide and sesquioxide, 
the former being present in the larger quantity. As it is difficult 
metallic iron, and the oxygen estimated by difference. ap 
The alumina and silica doubtless exist in combination as silicate. 
PYROXENE. 
Of a green colour, more or less decomposed, only traces of the 
previous crystallization left. Soft and fragile. From Oberon ; 
collected by Mr. C. 8. Wilkinson, F.G.S 
Analysis. 
Water lost at 100°C. 210 
Silica tee ie 35°319 
umina ... one oes ies oe. 9922 
Iron sesquioxide ... ee yi Sig BO OL 
“5, protoxide... s jis 08 
Manganese protoxide 056 
ime oe ies we ay oe eo 
Magnesia ... a eis ae ... absent 
Potash me mes a! igs aH 378 
Loss and undetermined ... a oes ‘Ti7 
100°000 
Sp. gr. 3-48 
ScHEELITE. 
Massive, with a portion of a crystal showing on one side, of an 
amber colour, lucent, resinous lustre, brittle, splintery 
dness, 4-5 ; sp. gr. 6-097. Associated with a dark 
green chloritic vein stuff. From the Victoria Reef Gold Mine, 
Adelong. 
