56 CATALOGUE OF MINERALS ; 
V.—FLUORINE COMPOUNDS. 
FLUORSPAR—Comp. Fluoride of silicon, Ca F,. 
As far as I am aware the only occurrence of this mineral in 
Queensland is in the Tinaroo district, where it is not unfrequently 
found in association with cassiterite and wolfram, being of a green 
or amethyst colour, but never in sufficient quantities to be of any 
commercial value. 
VI—ANHYDROUS OXIDES. 
CuUPRITE.—Red or ruby oxide of copper—Comp. Cu, O (sub- 
oxide of copper.) 
This ore of copper occurs in some amount at Moreton Island 
and at Mount Perry, but it is in the Cloncurry district that the 
finest examples of cuprite are to be found. In the Great Australian 
copper mine large masses of a very pure red oxide are met with, 
the mineral being frequently mixed with native copper. Some 
specimens from this district shew good isometric crystals of a dark 
cochineal-red colour. In the Rainbow lode the oxide is associated 
with malachite and the grey sulphide of copper and antimony. 
Mr. R. L. Jack mentions that in lat. 20° 10” S., between the 
Dugald and Leichhardt waters copper lodes occur, containing 
extremely pure ruby oxide coated with green carbonate, and 
frequently containing veins of native copper. 
Considerable quantities of cuprite, associated with black oxide 
of copper and much mixed with ferruginous earthy impurities, 
have been taken out of the Kennedy copper mine on a ridge near 
Sandy Creek to the west of the Great Star River. 
Tile ore, the earthy variety of cuprite, of a bright red to reddish 
brown colour and generally mixed with the red oxide of iron, 
occurs in most of the localities where the massive form is met 
with, and is also found in some of the tin mines of the Tinaroo 
district. 
MassicotT—LEAD OcHRE—Comp. Pb O, generally impure. 
This mineral, being formed by the decomposition of other lead 
ores, is found in most of the galena districts, such as Ravenswood 
and Silverfield, near Herberton. Also in lat. 20° 10” S. between 
the Dugald and Leichhardt waters a good deal of lead ochre is 
found in connection with valuable lead ores, the ochre being often 
impregnated with oxide of iron (Jack). 
