60 MINERALS OF TASMANIA. 
Copper Glance. In colour it is steel-grey, with a metallic lustre 
and shining streak. It is soft and perfectly sectile. It occurs 
desseminated, with Bornite and Chalcopyrite, in a quartz matrix 
at Mount Lyell. Assays of the mixed material have given returns 
at the rate of several thousands of ounces of Silver to the ton of 
ore. It is reported to occur on the footwall of the extensive 
interbedded formation of cupriferous pyrites for which the locality 
is now well known. ‘The only recorded Australian locality for 
this mineral is at the A. B. H. Consols mine at Broken Hill, 
N.S.W., where it is reported to occur ina matrix of Carbonate 
of Iron in a dyke of Amphibole; it was found in close association 
with Dyscrasite, Sternbergite, Pyrargyrite, and other uncommon 
argentiferous species. (Smith, The Australian Mining Standard, 
May 22, 1893). 
204. SILVER, NATIVE. 
The pure metal has been obtained as small frondose branching 
patches in gossan, Penguin Silver mine ; in clefts in lode material, 
Hampshire Silver mine; on Galena in flaky attached masses, 
which are usually tarnished, Owen Meredith mine, Dundas; in 
and on Calcite and Ankerite with amorphous Blende and Galena, 
Godkin mine, Whyte River: at this locality some extremely fine 
specimens have been obtained, many showing beautiful arborescent 
clusters of minute crystals: the crystals are often fairly well formed ; 
it also occurs in somewhat long capillary masses and fibrous 
bunches, filling small vughs and coating the fractures ; at the 
Bell’s Reward mine it has been obtained associated with crystals 
of Calcite, the thin wire-like sprays of Native Silver are sometimes 
interwoven between the Calcite crystals; it has been detected in 
stanniferous Granite in a dyke formation at the Blue Tier, with 
Chalcopyrite, Bismuth, and Fluorite as accessory minerals. 
205. STILPHNOSIDERITE (Hydrated Peroxide of Iron). 
Occurs of a dark blackish-brown colour with a conchoidal 
fracture, shining and brittle. It is generally found in a stalactitic 
form or as a varnish-like coating on Limonite or Manganese 
minerals—more particularly on Psilomelane. Central Dundas 
mine; rarely Mount Bischoff; lining vughs of ironstone, with 
Cuprite, Mount Lyell; Central Balstrup mine, Zeehan, coating 
masses of Limonite, which are commonly of stalactitic form. 
206. STANNITE (Sulphide of Iron, Copper, and Tin). 
Stated by Phillips (‘‘ Ore Deposits,” 1884, page 505) to occur 
at Bischoff. The term is usually applied to the sulphide ore as 
above, but Bristow (‘Glossary of Mineralogy,” 1861) defines 
a substance under this name as a mechanical mixture of Quartz 
and Tin oxide ; if this definition is accepted then such an occur- 
rence exists not only at Bischoff, but also in the Ben Lomond and 
other tin-mining districts. 
