444 Transactions.—Geology. 
Bornite, G3 Ee'’.—Dr. Hector mentions the occurrence of this mineral 
at Kawau (Trans, N.Z. Inst., vol., ii., p. 375), and Professor Liversidge also 
mentions a specimen from Dunstan, Otago (Trans. N.Z. Inst., vol. x., 
p. 502). 
Chaleopyrite (copper pyrites), Cxy'-+Ee”.—This ore, which contains theo- 
retically 84°5 per cent of copper, but which in nature is seldom found to 
have more than 15 to 20 per cent. present, and frequently less, is the most 
permanent form of copper ore and the one from which the greater quantity 
of that metal is extracted. 
This mineral was first discovered at the Island of Kawau in 1842, and 
was worked for several years, yielding on an average 12 per cent. of copper 
(Hector, Trans. N.Z. Inst., vol. ii., p. 875). When the mine was aban- 
doned the lode was reported to be 15 feet thick and to consist of a compact 
yellow pyrites, averaging 16 per cent. copper, lying against a band of iron 
pyrites. An account of the character of the lode has been published by Dr. 
Hector (Trans. N.Z. Inst., vol. ii., p. 875). Copper pyrites has again been 
worked at Mine Bay, Great Barrier Island, where it occurs associated with | 
peacock copper, blue and green carbonate, and black oxide, but is now 
abandoned. It occurs in a breccia lode, and has been reported on by 
Captain Hutton (Geol. Rep., 1868-69, p. 4). . 
Another instance of its occurrence is at Moke Creek, Lake Wakatipu, 
where it is found in a lode 4 feet wide (Hector, Trans. N.Z. Inst., vol. ii., 
p. 878), in which a solid vein of Chalcopyrite from 5 to 8 inches wide 
occurs, the rest of the lode containing only a little copper scattered through 
the gangue, and it is bounded by cupriferous schists. It again occurs in ® 
lode near Waipori, in Reedy Creek, a branch of the Waitahuna, from which 
locality some very fine specimens have been obtained, yielding as much as 
14 per cent. of copper. 
Mr. Macfarlane has forwarded specimens of Chaleopyrite from a block 
of land on the Paringa River, Westland, which he reports that he obtained 
from a lode 8 feet wide. Half of this lode is made up of the solid ore, 
yielding 18°55 per cent. of copper, the remainder consisting of quartz with 
thin bands of ore of the same kind. Copper Pyrites has also been found at 
the Pioneer Claim, Collingwood. Besides these localities at which lodes 
are known to occur, Copper Pyrites has been found at various places, such 
as the Thames, associated with gold; as grains imbedded in quartzose 
schists of the Moorhouse Range, Canterbury ; in the river beds south of 
Mount Cook on the West Coast ; in a lode at Dusky Sound, which however 
lid not prove of great value when opened up; at Lake Ohou; and at the 
Perseverance Mine, Collingwood, i Be 
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<m amell ananitiies.. 
