OCCURRENCE OF A NEW MINERAL AT BROKEN HILL. Bie 
could not be separated by any difference in their appearance, and 
yet their respective assays were (bulk samples) one thousand and 
forty-five ounces and forty ounces, the richer ore in silver strangely 
enough containing about seventy-five per cent. of lead as compared 
with sixty-five per cent. in the other ore. Some fine crystals were 
found, principally cubo-octahedrons, the finest specimens occurring 
in calcite. Pseudomorphs of anglesite, after galena, were found 
rather plentifully in the upper portion of the vein, some specimens 
showing a kernel of unaltered galena when broken, the sulphate 
often containing a crust of carbonate into which it was being 
altered. A few assays show the great range in silver value :— 
Coarse grain—Ag. 10 ozs. fairly plentiful es Dy Oa, 
ie = 40 ,, plentiful Ss: Boh hei Olas 
bs Pee Od ATC | oc ae Nasa ha lg iiess 
Fine grain a 40 ,, plentiful Pee Sao LO Ores 
as » 20 ,, found in fair quantity, ,, 80,, 
‘. ee OOM. A if eS Ohe 
ms Peo SOw 2 A ‘ ae FON, 
Very fine grain,, 690 ,, very rare Af we baen ions 
Cerussite—Carbonate of lead (PbCO,)—Very little found. Few 
erystals in upper levels. Grey variety resulting from the altera- 
tion of other ores was found near the rich ore assaying over one 
thousand five hundred ounces silver, and about sixty per cent. lead. 
Phosgenite—Chloro-carbonate of lead (PbCO, PbCl,)—Very 
rare; amorphous. No special trialsmade. Contains little silver, 
about five ounces. Found in upper levels. 
Lindheemite—Hydrous antimonate of lead.—Found in good 
quantity ; generally earthy ; always amorphous ; sometimes very 
rich in silver. No special tests made of any specimens from this 
mine. Found in upper levels associated with all the silver ores. 
Caledonite—Cupreous sulpho-carbonate of lead.— Very rare and 
impure, mixed with carbonate and sulphate of lead ; amorphous. 
No special tests made. 
Vanadinite—V anadate of lead.—Occurs as an incrustation on 
the crystals (pseudomorphs after siderite) of limonite, not plentiful. 
