MINERALS OF QUEENSLAND. 239 
ores are rich, we having had samples of }-cwt. assaying 
30°25 per cent. metallic tin, while, on the other hand, some 
samples have only yielded 5 per cent. metal on assay 
(Coane and Clarke) ; he Bloomfield River, Cooktown !!!, 
grey very water-worn stream tin ore, a boulder from 
this river, exhibited in the Colonial and Indian Exhi- 
bition (1886), was nearly pure tin-stone (cassiterite), 
and weighed 82lbs. (C.); Rose of England, Eureka 
Creek, Tinaroo ! ! !, associated with fluor spar, quartz, 
and iron pyrites (C.); Clan Ronald, Eureka Creek, 
Tinaroo ! ! !, with azurite and malachite, 20 feet 
from surface (C.); Lass of Gowrie, Eureka Creek, 
Tinaroo ! ! !, with white mica, 60 feet from surface (Cy; 
Black Rock, Eureka Creek, Tinaroo ! ! !, with red 
hematite, 70 feet from surface (C ) ; Lancewood Creek, 
9 miles from Brooklands Head Station !!!; Etheridge 
Goldfield ! ! ! (Hodgkinson); Krombit, Port Curtis 
district !, water-worn crystals in creek (R.) ; Christmas 
Eve, Irvine Bank, Tinaroo! ! !, with quartz, the two 
minerals occurring in alternate layers, about 15 times 
in 1”, the whole having a pink cast (C.); General 
Gordon Tin Mine, &c., Thompson’s Creek ! ! !, in lodes 
(J.); Return Creek !!!, lode and stream (J.); Emu 
Creek !!!, lode (J.); Halpin’s Creek !!!, lode and 
stream (J.) ; Pinnacle Creek, near Thompson’s Creek ! ! |, 
stream (J.) ; Oakey Creek, near Thompson’s Creek ! ! !, 
stream (J.) ; Bachelor’s Reef, Eidsvold !, in auriferous 
quartz reef, associated with tourmaline (R.); Dry 
River !!!, stream (J.); Aunitt or Nettles Creek ! ! !, 
stream (J.); Rudd Creek !!!, stream (J.); California 
Gully, near Herberton ! ! !, lode and stream (J.) ; 
Irvinebank ! ! !, in lodes in sedimentary rock, in Great 
Southern the cassiterite is associated with arsenical 
pyrites, native bismuth, stibnite, kc. (J.); Walsh 
River !!!, very fine crystals of tin ore disseminated 
through a chloritic matrix in lodes which coincide with 
the bedding of the country rock (pebbly grits), (J.) ; 
Gordon Mine, Glenhinedale ! ! !, the ore impregnating 
a country rock of hard, fine-grained, silicious, and 
talcose sandstone (J.); Koorboora, Tate River ! ! fu 
lode (J.) ; Watsonville !!!, in lodes in a country rock 
of shales and greywackes, associated in Ironclad Mine 
with copper pyrites and copper carbonates (J.) ; Spinifex 
Creek, near Herberton !!!, as stream tin (J.); Her- 
berton !!!, in leads below the basalt and in recent 
stream beds (J.); rarely in “elvan dykes”; at 
“Three Star” Mine, &c., in dykes of quartzose chlorite, 
and quartzose serpentine, and in chlorite rock-country, 
