58 CATALOGUE OF MINERALS ; 
A hematite, mined in the Potosi claim for use as a flux for 
various silver ores of the Herberton district, gave Mr. A. W. Clarke 
on analysis :— 
Moisture F : ; 1.82 per cent. 
Waterin combination . 10.24 
Peroxide of iron. <a 7 TOL 
Silica 4 ‘ : : ite) 5. 
Alumina . : ; : 3/00) Gs 
101.87 
TITANIFEROUS IRON ORE—Comp. like hematite, but with part of 
the iron replaced by titanium. 
Titanic iron occurs with chromite from the serpentine near 
Canoona, Rockhampton, also in the Burnett district, and in the 
Stanthorpe tin-wash. It has also been found in creeks at the foot 
of the Main Range, near Helidon, and with magnetite and zircons 
in the creeks forming the head of the Boyne and Stuart Rivers, 
Burnett district. 
MAGNETITE—MAGNETIC IRON ORE—Comp. Fe, O,. 
The occurrence of magnetite with hematite at Cloncurry has 
already been noted under the head of this latter mineral. Mag- 
netite also occurs at Happy Valley, Bowen; in the tin-drift of 
Stanthorpe ; with hematite on Pike’s Creek, near Stanthorpe ; with 
titaniferous iron and zircons at the head of the Boyne and Stuart 
Rivers; at Bingera; on the Tate River; at Gilberton; with 
malachite and azurite on the Kroombit Creek ; with malachite 
and chalcopyrite on the Star River ; and as a pseudomorph after 
cubical crystals of iron pyrites at Cloncurry. <A bluish grey 
quartzite in the neighbourhood of Mount Morgan is full of specks 
of iron pyrites and magnetite. 
CHROMITE—CHROME IRON ORE—Comp. oxide of iron and 
chromium. 
This mineral is found in pockets in serpentine country about 
twelve miles from Ipswich, on the Brisbane River. It also occurs 
in the serpentine of Mount Wheeler, near Rockhampton. 
CaASSITERITE—Comp. Sn Q,. 
Cassiterite is of most notable occurrence at Stanthorpe and in 
the Tinaroo district, but also occurs in quartz at the Phoenix mine, 
Cannibal Creek, near Maytown. 
