NEW SOUTH WALES MINERALS. 217 
The following analysis was made upon a specimen collected in 
the neighbourhood of Sydney 
Sp. gr. 4:49. 
Analysis. 
Water lost at el Re ee ee 646 
Silica Ss 4°210 
Alumina ... ‘71 
Iron sesquioxide 90° 
3» protoxi 3°632 
Manganese trace 
em ase eal ‘ — 
agnesia .. ae aa ee ia — 
Phosphoric acid ... she ube ... absent 
100-000 
_ The above results show the specimen to be an extremely good 
ore. 
HamatitTE, Brown. 
A massive form, dark ead fe. es black colour ; brown 
streak. Somewhat vesicular in p 
From the neighbourhood of J Lee 
Sp. gr. 3°52. 
Analysis. 
Water lost at 105°C. ... ie 1335 
bined . = ; 11°872 
Tron sesquioxide ... aya ae ne C15 oe 
lumina ... as aE Ae vi 1-232 
is ane: 428 
praia "857 
Maze esia ... me en ape ea trace 
Magn Sts ice ee 
100°786 
HamatitE, Brown. 
In the massive form. Found with the titaniferous iron ore, 
Uralla. 
Sp. gr. 3-611. 
Analysis. 
Water ad = 100° C <a ee 
55 cers by difference . 10°652 
Sica ee as 3°782 
Alumina of sa ste ins "15 
Tron protoxide Soe on = Sy , 3°526 
a sesquioxide .. is fs Lae 
wee seein 
WE er hs ht ae ee 
