62 CATALOGUE OF MINERALS ; 
glossy black colour coating quartz in a river on the Mary Douglas 
Hill, near Cloncurry. The brown hematite which has been the 
most valuable gold-bearing ore of Mount Morgan is probably 
limonite in part, although without a thorough chemical analysis it 
is difficult to exactly place minerals belonging to the hydrous 
oxides of iron. 
PsILOMELANE—Comp. Hydrous oxides of manganese. 
This mineral has been found at Beenleigh, and near Too- 
woomba ; at the junction of Horse Creek with the Gregory River 
a lode or “blow” of very pure psilomelane was noticed by Mr. 
R. L. Jack, and also a little higher up on the left bank of Police 
Creek ; from this gentleman’s report the occurrence of psilomelane 
in this locality must be frequent and of great importance. 
Wap—Asbolane or Wad containing oxide of cobalt—Comp. very 
variable, but essentially oxide of manganese. 
Mr. R. L. Jack noticed the occurrence of wad on Horse Creek 
with psilomelane. Dendritic markings of this minerals are by no 
means uncommon, being found among other places at Ipswich 
and on the Star River. 
The occurrence at Kilkivan of a cobaltiferous wad is very 
notable ; the asbolane from this locality is said to contain as 
much as 23 per cent. of oxide of cobalt, but this is such a high 
figure that I really think it requires confirmation. 
Asbolane has been found in the Mountain Home copper mine, 
near Cloncurry ; the association of minerals in this lode is worthy 
of note, green carbonate of copper, ferruginous red oxide of 
copper, enclosing numerous garnets, asbolane, and numerous 
dendritic markings of the binoxide of manganese, all occurring in 
the same lode (Jack). 
BisMITE— BISMUTH OCHRE—Comp. Bi O,. 
This earthy mineral occurs mixed with clayey matter at Mount 
Shamrock, near Chowey Creek, and also at Cloncurry. 
CERVANTITE—Sb O,. 
This mineral, which results from the decomposition of stibnite 
and other antimonial ores, is found massive at St. John’s Creek, 
in the Burnett district, and at Neardie. 
