MINERALS OF QUEENSLAND. 261 
TetLturiuM—Lucky Valley, Duffer Gulley ! in a quartz vein 
there are found ‘small, bright, foliated, metallic plates 
and scales of tellurium, in which gold may be seen 
imbedded ” (Aplin). 
TETRAHEDRITE—Pumpkin Gully, Cloncurry !, in cap of a large 
lode (J.) ; Copper Mines at Duck Creek, Cloncurry ! }, 
in rainbow lode (J.); Argylla Copper Mine ! !, in large 
lode, with native copper, cuprite and malachite (J.) ; 
Leichhardt River! !, Crusade and other lodes (J.); 
Mount Orange Copper Mine, Nebo district! !, with 
chalcopyrite (L.) ; Bowen district ! !, with calcite, assay- 
ing to 400oz silver per ton (L.); between Bowen and 
Mackay !!!, rich in silver (L.); Emu Plains, Broken 
River, North Kennedy !, occurs in thin strings, as an 
alteration product of azurite, associated with calcite and 
malachite, argentiferous (M.); One Mile, Ravenswood 
!!!, in Great Extended Shaft at 700 feet, ‘the gangue 
is 5 feet wide, the ore is exceedingly rich, assays giving 
by ordinary fire process from 500 to 5000 ounces of 
silver per ton, the rich ore is contained in a vein from 
6 to 12 inches thick, and, singular to say, contains the 
merest trace of lead. The formation (gangue) below 
this ore is intersected by small] galena veins ” (Archibald), 
although generally spoken of as tetrahedrite, with which, 
or rather with the argentiferous variety, freibergite, 
analyses sometimes roughly correspond, the “ore” does 
not appear (judging from what samples I have seen) to 
be a single mineral, but an intimate mixture of several 
ores of antimony, copper, iron, zinc, &c. (J.), assay silver 
23840z. 10dwt. per ton (L.).—Analysis by (J.) :— 
Copper Aer wd L012 OF 
Antimony ... a. sed ft lls3do 
Silver ee =o dee 7°29 
Tron aa — tp LOA 
Zine ».. aaa wey fa gadis. 
Sulphur a eS. .. 24:87 
Silica i aa BENS YOR ST 
101-86 (C.). 
Analysis, different sample :— 
Copper ses af vee) ou) 
Antimony ... he Loe, ee 
Silver Fs aft poo LORS 
Tron A dys we 8 8:49 
Zine hp nee a3 8-75 
Sulphur a at eerily le 
Silicious matter gee aad tor 
99-47 (Merry). 
