OCCURRENCE OF A NEW MINERAL AT BROKEN HILL. 375 
Calamine—Carbonate of zinc.—Rare; in small globules on 
limonite. 
Willyamite—Curiously enough this mineral was found associated 
with one lump of dyscrasite only, about forty pounds. This lump 
was found near the piece which contained the sternbergite, 
although other lumps were found in the near vicinity, none of 
this mineral was found with them, a remarkable coincidence, 
seeing that the lumps were so close im situ. Associated mineral 
dyscrasite ; depth one hundred and fifty feet vertical. Lode- 
gangue calcite and siderite. 
Calcite, Siderite, Limonite—Vein material, often well crystal- 
lised. The limonite being of course pseudomorphous after siderite ; 
the change taking place at about one hundred and thirty feet, 
which may be considered the water level. 
Aragonite—In well developed crystals ; rare. The best speci- 
mens being found at about three hundred feet in a cleft of the 
enclosing country, viz., amphibolite. All the above minerals were 
found enclosed by this rock in which the whole shoot of ore exists. 
Mercuwry—Sulphide.—Found as a red hard mineral associated 
with iodide of silver in limonite in one locality, in upper levels ; 
also three hundred feet lower, coating dyscrasite of a brownish- 
red colour. All varieties readily tarnish on exposure to sunlight. 
Manganese —Manganese dioxide, pyrolusite and wad !—Rather 
plentiful in upper levels. The former sometimes in stalactitic and 
branch-like forms, making good cabinet specimens. 
Quartz—Small perfect crystals with double terminations; rather 
rare. Agate and amethyst, both well coloured ; the former was 
common in upper workings. 
Native Sulphur—tIn small crystals associated with cerussite in 
vughs in galena, from the decomposition of which it has no doubt 
been derived. 
