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302 A. LIVERSIDGE. | : 
hollow rhombohedrons, some of the rhombohedrons were cut in 
yhalf by diagonal films of mispickel. 
On treating these plates with nitric acid to see if they contained 
_any free gold, they were in some cases found to consist of quartz, 
merely coated with mispickel. In this instance no free gold was 
yleft, neither by the calcite nor by the mispickel. 
Another piece of the auriferous mispickel in calcite from Luck- 
now, was roasted and yielded large excrescences of moss gold, this 
“was removed and the residue of iron oxide, lime, silica and unde- 
composed mispickel was treated with hydrochloric acid until only 
some silica and a little gold were left. The gold was very finely 
_divided and floated readily on water, but appeared as if some- 
. what crystallised. 
The calcite from another specimen, but unroasted, was removed 
- by hydrochloric acid, and a small amount of fine free gold was 
, left together with some powdery mispickel and silica which had 
. been enclosed within the calcite—under the microscope the gold 
_-was seen to be more or less crystallised. 
In the rich gold calcite specimens from the above and other 
- New South Wales mines, as well as those from Gympie, Queens- 
| land, the gold can be seen to be crystallised, so also in the serpentine 
_ from Gundagai and Lucknow, and some of the clear auriferous 
_ quartz from New Zealand, but in the majority of cases, for I have 
only quoted a few out of numerous trials, the gold embedded in 
massive quartz, is remarkably free from any traces of crystalline 
_ form, and the larger the fragments of gold the less crystalline form 
_ does it present. 
A splinter of gold with octohedral faces on both ends, enclosed 
in a small rock crystal is stated by Selwyn and Ulrich (Phys. 
. Geog. Geol. and Mineralogy of Victoria, 1866, p. 43) to have 
been obtained from the M’Ivor Gold Field, together with other 
2 erystallised specimens of quartz containing non-crystallised gold. | 
Crystallised gold is not usually met with in the quartz of the 
_ reef itself, but in the upper portions of the ferruginous and argil- 
4 laceous casing of the reef and in the detritus near its outcrop. 
