68 THE MINERALS OF TASMANIA. 



114. Enargite ( Sulpharseiiide of Copper). 



It is only known in the massive state as occurring in 

 this island, the orthorhombic crystals not having been 

 detected. The usual colour of this mineral is iron-black, 

 with a distinct metallic lustre and black streak. The frac- 

 ture is uneven and somewhat brittle. It has been obtained 

 in small masses, intermixed with arsenical pyrites and 

 fahlerz, at the Curtin-Davis Mine, North-East Dundas. 

 It also occurs in limited quantity with other ores of copper 

 at the Mt. Lyell Mine. 



115. Endlichite (Chlor oar senate and Vanadate of Lead). 



Found as minute, milk-white, hexagonal crystals at the 

 Heazlewood and Magnet Silver-lead Mines. It is somewhat 



116. Enstatite (Silicate of Magnesium and Iron). 



A rhombic pyroxene, apparently synonymous with 

 bronzite. Occurs in subcrystalline masses of considerable 

 extent in connection with serpentine at the Heazlewood, 

 with other allied forms of almost similar chemical com- 

 position ; abundant with its varieties, Huskisson River ; 

 Parson's Hood ; Magnet Range. 



117. Epidote (Silicate of Iron and Calcium). 



Crystallises in the monoclinic system. It is always some 

 shade of yellow-green. This mineral frequently occurs in 

 richly metalliferous rocks, and in a lesser degree it is widely 

 diffused. It is usually of a peculiar and characteristic 

 pistachio-green colour, but it often affects a reddish-brown 

 shade when occurring in serpentine. Common in green- 

 stone west of the River Leven and at other places (J. 

 Smith) ; abundant in clefts of rocks, Magnet Range; near 

 Table Cape ; about the River Forth ; vicinity of Mt. 

 Bischoff ; with quartz as veins in an igneous rock, usually 

 occurring in bunches of crystals (some of the individual 

 specimens often met with up to an inch in length), Dunyan 

 Range, Duck River; Woolnough, of clear colouration, but 

 small size. At the Whyte River it has been found in the 

 clefts of lode material with bunches of calcite and pyrites ; 

 at Dundas it is fairly abundant in quartz. Occurs very 

 well crystallised, and of good colour, on the Melba Flat, 

 North Dundas. At Calstock, near Deloraine, it occurs 

 sparingly in quartz. In the vicinity of the Round Hill 

 Silver-lead Mine, near Mt. Claude, this mineral is fairly 



