OCCURRING IN TASMANIA. 27 



following 



101-80 



Before the blow-pipe the substance swells and forms 

 a brown-coloured mass, which is easily powdered. 



With soda, after trituration, it leaves a loose powdery 

 residuum, which is readily attracted by the magnet. 

 The fused mass with borax bead gives reactions of 

 iron and chrome oxides. It is readily soluble in 

 water, and if kept in dry situation it gives up 

 much of its hygroscopic moisture. If anew mineral 

 species, which is highly probable, I propose it 

 should be called '' Sclerospathite." 



39 Leuchtenbergite. — {A variety of chlorite poor in 



iron.) 



In the variolite rock at the Magnet Mine. 



40 LiLLiANiTE. — (Sidphohismutite of lead.) 



Found disseminated in association with bismuth, 

 sulphide, and other minerals in a quartz matrix at 

 the Osborn Blocks. Mt. Farrell. 



41 Magnetite. — (Sesquioxide and protoxide of iron.) 



In bunches of well-formed crystals — Tenth Legion 

 Mine, Zeehan. (H. Waller.) 



42 Margarite. — {Basic aluminium and calcium, silicate) 

 In irregular radiating bunches in schist. Locality, 



west slope of Hamilton Hill, near the Hercules 

 Mine. 



43 Melilite. — {Complex silicate.) 



As microscopic rock-forming crystals in the melilite 

 basalt of the Shannon Tier and One Tree Point, 

 near Hobart. 



44 Microcline. — {Triclinic potash soda felspar.) 

 Occurs abundantly in the hypersthene granite of St. 



Mary's Pass. 



