NOTES ON MELONITE (NICKEL-TELLURIDE) FROM 
WORTURPA, SOUTH AUSTRALIA. 
By Aurrep J. Hiaery, Lecturer on Chemistry, University 
of Adelaide. 
[Read September 5, 1899. ] 
Three separate samples of the telluride lately found at 
Worturpa were sent to me, all of which I found to be identical 
in appearance. The telluride occurs with quartz and calcite in 
thin lamelle, hut not showing distinct crystalline form. 
It has a brilliant metallic lustre. The colour of the cleavage 
planes by direct reflection is silver-white ; in oblique directions, 
reddish-brown ; on the fractured faces of a more bronze-like hue. 
The hardness is 1:5; sp. gr., 7-6; streak lead-grey. A qualitative 
analysis proved that the mineral was telluride of nickel, contain- 
ing traces of bismuth and lead, and a variable quantity of free 
gold. 
A quantitative analysis of the mineral gave the following 
results :— 
(1) (2) 
Per cent. Per cent. 
Insoluble matter ... aS 2-091 7319 
Golda ¢3 2 ae *329 ‘O18 
Nickel ... ¥at) S28 BB99 QA 2 FA. 
Tellurium yds tice (ate 71:500 
99-90 100:111 
The material for analysis was picked out when the stone had 
been broken up, and is, as will be seen, nearly free from foreign 
matter. There can be no doubt from these analyses that the 
mineral is melonite, Ni, Te,. This would require— 
Per cent. 
Nickel toe Sete 
Tellurium oh Pe A hord 9 
100-00 
This mineral has, so far as I am able to ascertain, only been 
found in one place, viz., in the Stanislaus mine, California, U.S. 
of America. 
It is described by Genth in a paper entitled ‘“‘ Contributions to 
Mineralogy,” published in the American Journal of Science, 
vol. XLV., 1868. Geuth states that he only obtained a small 
