430 Transactions.— Geoloyy. 
Massive varieties—The massive varieties are more widely distributed 
and assume a greater economic importance since they are found as the 
principal constituents of lodes in various parts of the colony. Perhaps the 
most important of these is the ore from Stoney Creek, Waipori. It consists 
of a massive crystalline variety of Stibnite occurring in a lode 24 feet thick, 
which has been traced for a distance of 200 feet, and is reported to be met 
with as outcrops for a much greater distance. The pure ore is mixed with 
about 80 per cent. of gangue in the lode (Rowe, Geol. Rep. 1879-80, p. 155). 
A massive sub-crystalline variety from Endeavour Inlet, Queen Charlotte 
Sound, consists of a mixture of nearly pure Stibnite with quartz; and a 
series of analyses have given 69-4 per cent.; 86°36 per cent; 58°25 percent. ; 
51°12 per cent; 44°28 per cent.; 19-01 sek cent. ; and 17-20 per cent. of 
Antimony, and they contain from 3 to 8 dwts. of gold per ton. 
This ore was found scattered as large blocks through a surface deposit, 
and a reef was also found which carried Stibnite on its back, but passed 
afterwards into a poor auriferous quartz, and it is probable that the real 
source of the ore has not yet been found. 
A very interesting occurrence of auriferous Stibnite has been discovered 
at Langdon’s, near Greymouth. The first specimen of this ore was for- 
warded from Hokitika by Mr. McRae, and yielded 84 ozs. 9 dwts. 19 grs. of 
gold and 36 ozs. 4 dwts. 5grs. of silver per ton. The large quantity of gold 
found in this specimen gave an air of probability to the supposition that 
telluride of gold was present; but when an examination for Tellurium was 
made none was found, and a large proportion of free gold was shown to 
Dr. Hector subsequently examined this reef, and in the Geological 
Reports, 1878-79, p. 19, he says:—‘ Following up the same creek, at an 
altitude of 400 feet above Langdon’s reef, the lode from which the auriferous 
Stibnite is derived has been discovered, having a thickness of 9 feet, and 
dipping at 60° to the south-west. It is cased in a hard, blue, cherty slate, 
and has a banded structure, consisting of five distinct bands— 
ee ee dispersed in Ft. in. 
irregular masses .. Sr ne Sas ae pe a» 2 2 
No. 2, compact Stibnite.. a re re 
No. 3, Sine, ining guts in the form of nodule ee “* oo» ae 
pabsuicen ane agit mms el seem 
No. 5, breccia of slate .. oo ee ee 
9 225 
The lames returns were obtained by assay of these samp 
No. 1.—Quartz and Stibnite. eee 
@ contains 2 ozs. 10 dwts. 7 grs. gold per ton. : a 
bos 2 ” Se eS 
