Notes on some recently discovered and other minerals occurring in Tasmania

Mr. W. F. Petterd, C.M.Z.S., read valuable notes on some recently discovered and other minerals occurring in Tasmania. Includes Aikenite (sulpbatio-bismuthite of lead and copper), Analcite (hydrated silicate of aluminium and sodium), Bismuthinite(sulphide of bismuth), Boulangerite (sulphantimorite of lead), Chalcotrichite (fibrous cuprite), Datolite (basic orthosolicate of calcium and boron), .Fayalite (iron olivini), Idocrase (a basic silicate of calcium, aluminium, and iron), Ilvarte (a basic ortho-silicate of iron and calcium), Palagonite (hydrous silicate of iron, etc.), Pyroclore"(columbato and lilanate of calcium), Prosopite (hydrous, fluoride of aluminium, and calcium), Pyrrnotite (sulphide of iron), Sillimanite (a basic ortho-silicate of aluminium), Tetrahedrite (sulphantimonite of copper) Uralite (a pseudomorphous hornblende with the external form of augite), Vanadinite (an orthovanadate of lead with chloride of lead), Zinkenite (sulphantimonite of lead), Zinnwaldite (lettia muscovile)