MINERALS OF QUEENSLAND. 259 
iron pyrites, copper pyrites and galena (M.); Tornado 
Claim, Silverfield, Tinaroo district ! !, with chalcopyrite, 
arsenical pyrites, and galena (J.); Koh-i-noor, Newell- 
town, Tinaroo district ! !, with arsenical pyrites and 
galena (J.); Hector Claim, Ravenswood ! !, auriferous, 
with iron pyrites (C.); Currency Lass and Politician 
Claims, Ravenswood !!, auriferous, with iron and 
copper pyrites and galena (C.); Alexandra Hill 
Gold Mine, Charters Towers ! !, auriferous, with iron 
and copper pyrites (C.); Sunburst P.C., Charters 
Towers ! !, with galena and iron pyrites in quartz, auri- 
ferous (L.) ; Mary Florence, Rockhampton !, auriferous, 
with iron and copper pyrites in quartz (C.); Kilkivan 
Amalgamated Gold Mine, Kilkivan ! ! !, in quartz with 
a little calespar, associated with galena and iron pyrites, 
free gold often visible (L.); Gympie !, in quartz with 
free gold (R.); Rise and Shine Reef, Kilkivan ! !, auri- 
ferous (R.) ; Mount Leyshon, 17 miles south of Charters 
Towers !! !, with galena, assayed 2loz. 4dwts. 4grs. 
silver per ton (C.); Ravenswood !!, with galena 
(Christoe),—The sample assayed 430oz. silver per ton, 
An experiment was tried to see whether the galena or 
the zinc-blende carried most silver, and as the sample 
was remarkably pure and the two minerals in com- 
paratively large crystals, it was possible to sort out 
sufficient of each (from the coarsely powdered ore) for a 
separate assay, and the following returns were obtained : 
—Galena 43loz. silver per ton, sphalerite 429o0z. silver 
per ton (C.); Charters Towers Goldfield !, with pyrites 
and galena in auriferous reefs (J.); Ravenswood Silver 
Mines !!!,in lodes with galena, cerussite, stibnite, 
pyrites’ &e. (J.) ; Sellheim Silver Mines !! !, in lodes 
associated with galena and pyrites (J.); Dry River 
Silver Mines ! !, in lodes, associated with pyrites, marca- 
site, chalcopyrite, galena, anglesite, cerussite, and mala- 
chite (J.); Degilbo !!, in lodes, associated with gold, 
galena and arsenical pyrites (R.); Croydon Goldfield }, 
in auriferous reefs associated with pyrites, galena and 
graphite (J.); Ravenswood Goldfield ! !, in auriferous 
reefs associated with pyrites, arsenical pyrites, copper 
pyrites and galena (J.) ; Etheridge Goldfield ! !, in auri- 
ferous reefs associated with pyrites, arsenical pyrites, 
copper pyrites and galena (J.); Norton Goldfield ! !, 
with galena, iron pyrites, quartz and calcite, auriferous 
and argentiferous (C.).—[ Analyses and assays of two 
complex zinc, iron and lead sulphides from Norton 
Field :— 
