200 The N.Z. Journal of Science and Technology. [May 
9. Orari Gorge, South Canterbury. —Skey states that an impure graphite 
from Orari Gorge has the following composition : Carbon, 20-62 per cent. ; 
water, 0-59 per cent. ; earthy matters, 78-79 per cent. Lab. No. 15, 1878, 
p. 36, No. 2681. Collected by Mr. C. G. Tripp. See also analyses of 
material from Woodbury, quoted on a later page. 
10. Mount Potts, Canterbury. —Cox states (p. 364) that in 1878 Mr. 
Alex. McKay collected a very pure sample of graphite from the Glossopteris 
(.Linguifolium of Newell Arber) beds of Mount Potts. This contained— 
Carbon, 90-17 per cent. ; water, 3-61 per cent. ; siliceous matter, 6-22 per 
cent. .Ash reddish. “ Although so rich in carbon it has not that unctuous¬ 
ness which distinguishes the more valuable graphites, but appears indurated 
and granular, defects which must depreciate its value very considerably.” 
Lab. No. 13, 1878, pp. 22-23, 35, No. 1987. The locality is not given by 
Skey, but Cox’s statement enables it to be ascertained. 
11. Malvern Hills. —Cox states (p. 364) that during 1878 a sample of 
graphite shale from the Malvern Hills was forwarded to the Colonial 
Museum by the Hon. Mr. Ackland. 
12. Otira District and Arthur's Pass. —Some of the rocks in the Otira 
and Bealey district contain a good deal of carbonaceous matter. A large 
sample of impure graphite from a bed between Otira and Arthur’s Pass 
was among the Westland exhibits at the Christchurch International Ex¬ 
hibition, 1906-7. The material was not crystalline or “ flake ” graphite, 
but probably could be classed as “ amorphous ” graphite.* A specimen in 
the Canterbury Museum obtained 86 chains from the Otira end of Arthur’s 
Pass Tunnel is labelled as “ graphite.” 
13. Paparoa Range.- —In places the argillites of the Paparoa Range 
(age probably Ordovician) are poorly carbonaceous or graphitic. Some of 
the quartz in the auriferous veins may also be graphitic. Skey states 
(Lab. No. 31, 1898, p. 21) that a piece of mineral forwarded by the Mines 
Department among some samples from the Paparoa Range contained 10-24 
per cent, of graphite. The exact locality of this sample is not stated, and 
it is quite possible that it did not come from any part of the Paparoa 
Range. 
14. Reef ton. —Graphite occurs in small quantity in the rocks and quartz 
lodes of the Reefton district. McKay [Rep. Geol. Explor., No. 15, 1883, 
pp. 110, 111, 120, 129, &c.) mentions bituminous mudstone and black 
limestone as occurring at Rainy Creek, Lankey’s Gully, &c. A specimen 
of black bituminous pyritous mudstone (or argillite) which was analysed 
in the Colonial Laboratory was found to be of a graphitic character 
(pp. 115, 116 of report cited). According to McKay, graphite occurs 
plentifully at the Specimen Hill Mine, coating the flakes and laminae of 
quartz (pp. 129, 134 of report). 
15. Waimangaroa. —In 1899 the Assistant Inspector of Mines for 
warded a sample of poor graphitic sandstone from Waimangaroa to the 
Colonial Laboratory. Its analysis was—Water, 3-46 per cent. ; carbon, 
7-15 per cent. ; siliceous matter, 89-39 per cent. Lab. No. 33, 1900, p. 15, 
No. 8547. 
16. Wangapeka District. —Some of the metalliferous lodes of the Wanga- 
peka district contain a good deal of graphite. A sample of dolomitic or 
magnesian limestone from the Rolling River, forwarded to the Colonial 
* For an explanation of the terms “ flake ” and “ amorphous,” see a later page, under 
the heading “ General Remarks.” 
