256 Proceedings of the Royal Society of Victoria. 



AxiNlTE.* — Boro-silicate of aluminium and calcium with more or 

 less iron and manganese. 

 Pale lavender-pink coloured crystallizations associated with 

 epidote from small veins in the xliorite, Samaria, 

 Mansfield district (M.Dt.). 

 Barite. — Barium sulphate. 



Semi-transparent and imperfectly crystallized masses, 



Corryong ; massive crystalline, Mount Tara (W.). 

 Large lodes of almost pure barite occur in porphyry, at 

 Gelantipy, they are slightly ai-gentiferous ; Clifton 

 Creek and Mount Taylor Creek (CI.)- 

 Berthierite.*§ — Sulphantimonite of iron. 



No quantitative analysis of this specimen was made, but in 

 other respects it agrees closely with berthierite. It 

 occurs near Euroa in a quartz lode in small fibrous 

 veins with iridescent surface (W.). 

 Beudantite. — Hydrous phosphate or arsenate of iron and lead. 

 The mineral recorded as beudantite is pharmacosiderite, 

 the mistake being due to similarity of form (R.). 

 Bismuth. — 



In small patches in a crystalline quartz reef, Mount Taylor; 

 oxide, sulphide, and carbonate of bismuth, with traces 

 of tellurium, Mallacoota (Ci.). 

 BiSMUTHiTE. — -Bismuth carbonate. 



Mount Taylor; in ironstone, Mallacoota (CL). 

 BoRNiTE. — Sulphide of copper and iron, Mount Tara (CL). 

 BoURNONiTE. — Sulphantimonite of lead and copper. 



Disseminations in quartz with pyrite and arsenopyrite. 

 Mount Wills (W.). Long Tunnel Mine, Walhalla (CL). 

 At Anderson's Creek this mineral occurs in some of the 

 quartz reefs. It is generally surrounded by a yellow 

 powdery decomposition product which, probably con- 

 sists of lead sulphate and antimony oxide. As far as 

 experience goes bournonite is either non-auriferous, or 

 only auriferous to a slight extent. 

 Calcite. — Calcium carl)onate. 



var. Sia/aginite. — Granular botryoidal, caves at Yering ; 

 banded concretionary; Back Creek, Gippsland (B.M.). 

 var. Calcsinter. — Loch Ard Caves, near Port Campbell 

 (B.M.). 



