MINERALS OF QUEENSLAND. 257 
is in very small perfect crystals, being combinations of 
the prism with the basal pinacoid (O.P.) (C.). 
Quartz—Day Dawn P.C. Mine, Charters Towers ! ! !, auriferous, 
associated with pyrites, galena, sphalerite, &c., occurs 
in quartz lode, which is associated with diorite (?) and 
runs through granite country. The ore is taken from 
a depth of 997ft. on the course of the lode, representing 
a vertical depth of 732ft. The lode underlies at an 
angle of about 50° (T. Buckland). 
Tron ee nf icc. OD 
Lead a =: woe ore 
Zine Ae Av tee 6°50 
Copper the id ad: “15 
Alumina Nee EM 3 30 
Sulphur Sa Se. >. neko 
Siliceous insoluble matter ey. 220r90 
Gold, silver, oxygen and loss... "25 
100-00 
Produce of gold 140z. 2dwt. per ton of 2240lb. ; produce 
of silver, 90z. l5dwt. per ton of 2240lb., (assay 
by Messrs. Johnson, Matthey and Co., London) :— 
Lead wa BS UND, FAD 
Copper tg oe ae “36 
Tron “oe ae cee MZ OSH. 
Zine ue OS 3 Sa) 
Manganese, with a little cobalt ... “30 
Sulphur ins ae IPR MET SOO 
Arsenic Ae ale Me 2139 
Antimony ... Me a: ‘09 
Carbonate of lime oe er 1°50 
é », Magnesia ihe 21 
Alumina a Bae aes 1:20 
Silicious rock ae sezgen ce LO 
Gold and silver ae ete ‘04 
Oxygen and loss a of 64 
100-00 
Silver 6oz. 11dwt. per ton of 2240]b. ; gold 60z. 10dwt. 
12gr. per ton of 2240lb. (assay by Fred. Claudet, 
Esq., London, assayer to the Bank of England); Black 
Jack, Charters Towers !!, with calcite, the latter in 
opaque rhombohedral crystals (C.) ; Charters Towers ! }, 
when associated with galena, sphalerite and calcite and 
iron pyrites, nearly always auriferous (C.) ; Smoky guartz 
Stanthorpe district ! !, with tin ore, with orthoclase felspar 
Q 
