34 
RECORDS OF THE AUSTRALIAN MUSEUM. 
6. Native bismuth, from Biggenden, Queensland. In calcite, 
where it occurs mainly between the cleavage planes of the calcite, 
which is strongly striated like some of the Scandinavian specimens 
of that mineral. 
7. Native bismuth, in hornblende and quartz ; Mt. Ramsay, 
Tasmania. 
Bismuth sulphide. 
1. In plates or films with a finely fibrous structure, embedded 
in rock crystal. The sulphide also occurs in granite made up of a 
brownish felspar, quartz and decomposed mica. From Kingsgate, 
Glen Innes, N.S.W. 
2. Massive bismuth sulphide also possessing a fibrous structure, 
with the native metal, from the same place. 
3. With bismuth carbonate and magnetite, Biggenden, Queens- 
land. 
Bismuth carbonate. 
1. This is of an ochrey form, associated with bismuth sulphide, 
quartz, etc. From Kingsgate, Glen Innes, N.S.W. 
2. This specimen is massive, and possesses a platy or laminated 
structure. 
3. Gold with bismuth carbonate, Yarrow Creek, N.S.W. 
4. In a fourth specimen, from Biggenden, Queensland, the 
carbonate occurs with native bismuth in quartz, and is of a 
greyish colour, instead of the yellowish tint exhibited by the 
Kingsgate carbonate. 
5. This specimen, from Mt. Shamrock, Queensland, is said to 
be auriferous. 
6. From Halifax Bay, Queensland. 
Molybdenite (MoS 2 ). 
[Plate viii.] 
Found associated with native bismuth and other minerals, as 
already mentioned, in quartz. Some of the crystals have been 
found of very large size, as much as 3£ x 5| inches, and built up 
to a thickness of 2 or 3 inches (Jourm Roy. Soc. N.S.W., p. 237, 
1892) ; the outlines of such, however, are very imperfect, but 
amongst those in the present collection are some very well 
developed crystals (see plate viii. which shows the natural size), but 
of smaller size. The group (fig. 5) is a very interesting one, 
showing well marked hexagonal forms, with a nearly vertical 
