47 
In February, 1914, three parcels of oxidised gold ore, amounting 
altogether to 172 tons, were sent in to the State Smelter, at Ravens- 
thorpe, near Kundip, from the “O.T.” Tribute on the Harbour View 
Mineral Lease, at Kundip. This ore, when “bedded,” showed a 
number of light yellow fragments, which proved to consist largely 
of ferric oxide and sulphuric oxide, and were afterwards identified 
as Natrojarosite. The total quantity of this mineral was estimated 
at well under one per cent. The parcel of ore as a whole contained 
0.52 per cent, of SO ;5 , which if it were all present as Natrojarosite 
would indicate 1 y 2 per cent, of that material, but some was, no 
doubt, present as epsom salts and gypsum carried into the ore by 
the ground water, which is highly saline, as the following figures 
show : — • 
Table I. 
Analyses of Kundip Groundwater. 
Medic Mine. (lJ 
Flag Mined 1 2 ) 
Flag Mine. 
Parts per cent. 
CaC0 3 
0-0482 
0-0553 
0-0595 
MgC0 3 
... 
•0084 
•0015 
FeCO s 
trace 
trace 
Nil 
CaS0 4 
•0470 
MgS0 4 
■3275 
ioio 
•2016 
NaNOg 
Nil 
Nil 
trace 
MgCl 2 
•4088 
1627 
■1896 
NaCl 
2-5882 
1-3485 
1-3742 
KC1 
•0198 
•0129 
NaBr 
•0002 
•0002 
Nal 
Nil 
Nil 
Si0 2 
■0032 
•0024 
■0026 
A1A 
•0030 
0014 
•0038 
Total Solids ... 
3-4259 
1-7897 
1-8459 
The shaft from which the ore was obtained is in an area of 
hornblende schist near the northern corner of the Harbour View 
Lease 3 . This shaft was inspected in October, 1914, and whilst 
some Natrojarosite could be seen lying on the surface, none was dis- 
coverable underground. According to Mr. Charles Grant, of Kun- 
dip, the mineral is found not only in this shaft, but also in other 
neighbouring ones, in lenses or irregular masses in the oxidised por- 
1. From shaft 10 chains W. of Natrojarosite deposit. 2. Half-mile N.E. of Harbour 
View Lease. 3. See G.S.W.A. Bull. 35, Plate VII., p. 96. 
