954 MINERAL CENSUS OF AUSTRALASIA. 
MispicKEL !! !—Arsenical pyrites occurs in nearly all the 
auriferous reefs in Queensland, especially those in which 
the country rock is granite, conspicuously at the 
Etheridge, Ravenswood and Norton (J.) ; Stanthorpe! 
(Q. M. C.); Allendale lode, Chowey Creek, Wide Bay 
district ! !, with galena, sphalerite and iron pyrites (R..) ; 
Mount Witty, Beenleigh ! !, in dark quartz, auriferous 
(L.) ; Reid’s Creek, Mount Perry ! !, auriferous (R.). 
MoLyspENiIvE — Stanthorpe district ! in greisen dykes, with 
wolfram and cassiterite (R.), also in quartz at Noble 
Tin Mine and at Greenups (J.) ; Townsville district! 
(D.) ; Halifax Bay, near Townsville ! (J.); Herberton 
district ! (J.); Ravenswood Goldfield !, in quartz (J.) ; 
Herberton, Young American Claim !, with wolfram (J.) ; 
Cania Goldfield !, with gold in calcite (R.); Ipswich 
(Q.M.C.); Walsh River ! (J.); Eidsvold Goldfield !, in 
“ Moonlight” Reef, auriferous, in quartz (R.); Stan- 
thorpe !, in quartz, sometimes with arsenical pyrites and 
with tin ore (L.) ; 30 miles west of Mackay !! }, large 
blocks obtainable (Staiger); Mount Ophir, Chowey 
Creek, Wide Bay district! !, with iron pyrites in 
auriferous quartz (R.) ; Old Chowey reefs, nearly due 
north of Didcot, Wide Bay district !!, with specks of 
gold in its midst (R.); Mount Shamrock Mine, Wide 
Bay district !, containing visible gold (L.); Burnett 
district ! !, exact locality not yet made public, in quartz 
with molybdic ochre, showing fine flakes of gold (L.). 
Motyspic Ocure— Burnett district, in quartz with molybdenite, 
specks or flakes of fine gold being visible in the ochre, as 
well as in the sulphide mineral (L.). 
NatroLitrE—Main Range, below Toowoomba !, in basalt (L.) ; 
Degilbo Run, Wide Bay !, in basalt (R.). 
OLIvINE—Gatton, in basalt (L.) ; Albert district, in basalt (R.) ; 
Cania Goldfield, in basalt (R.) ; Cania, Burnett district, 
in basalt (R.) ; Albert and Logan districts, in basalt (R.). 
Opat—Bulloo River ! ! (L.); Barcoo River ! ! (L.) ; Logan River |, 
(Hinchcliffe); Springsure (Q. M. C.); Blackwater 
Creek, Bulgroo, Keeroongooloo, Mayne River, Nicka- 
villa, Winton !!, ‘in nodules of ferruginous silicious 
sandstone and silicious ironstone, elther in the ‘ desert 
sandstone’ formation or denuded out of it and resting on 
the surface of the underlying ‘Rolling Downs’ formation. 
The whole of the area over which the ‘desert sandstone’ 
extended—the western half of the colony— might 
therefore be given as the locality in which ‘opal mines’ 
are ‘undeveloped’” (J.) ; Mount Toussaint and Mount 
