232 SOME NEW SOUTH WALES SILVER AND OTHER MINERALS. 
porphyrytic structure, and the silver chloride was mixed with 
rey copper sulphide (redruthite), and was associated with 
small crystallised red garnets ; at the 212 feet level cuprite and 
quartz were also present in addition to the copper sulphide and 
other minerals. 
Large quantities of cerussite, i.¢., lead carbonate, and galena 
seem to be present throughout most of the veins, so that smelting 
should ke easy. 
one another in incipient branching forms, with a horn-like 
translucency, and of a greenish shade. 
n some cases where the silver chloride is crystallised on a velvet 
black or brown hematite, the effect is very fine and the appearance 
yellow crystals which appear to be minute imperfect hexagonal 
prisms of silver iodide, but I have not yet contirmed the presence 
of iodine. 
In one vein at the Broken Hill the vein stuff is a white earthy 
mineral resembling kaolin, and the vein is known as the Kaolin 
vein in consequence. The greenish crystals and plates of silver 
pecimens are shown you from the following mines, in addition 
to those from the Broken Hill Mines :-—Christmas Mine, Lubra 
Mine, War Dance and Gipsy Girl Mine, Thackeringa, North 
May Bell Mine, Silverton, Day Dream, Hen and Chickens Mine 
where the silver chloride occurs with azurite or blue copper 
carbonate. 
Selected specimens, of course, assay very high, one piece of the 
vein from the Lubra yielded 8,493 ounces of silver per ton, and a 
. yield of 16,000 ounces has been obtained from surface slugs. 
Lodargyrite.—Silver iodide, the probable presence of this has 
been already mentioned. 
Cerussite.—Lead carbonate occurs in association with t 
silver chloride, galena, &c., in the Silverton Mines, sometimes 
fairly crystallised. The cerussite appears to be free, or almost free 
from silver, the latter having been deposited on its surface merely. 
