BY W. F. PETTERD. 41 
entangled fibres often forming large masses of a dark, almost 
black colour. At the Madam Melba mine at Dundas it was 
discovered forming a dense compact lode, the fractures of which 
contained bands and coatings of the mixed oxides of Antimony 
and Lead. At this locality it oceasionally forms bunches of fine 
acicular crystals which are implanted upon brown spar, and it is 
not uncommonly intermixed with Boulangerite and Galena. 
119. KAOLINITE (Hydrated Silicate of Alumina). 
The ordinary Porcelain Clay or Kaolin, which, when pure, 
contains no alkaline matter and should not fuse; but the majority 
of substances that are locally termed “ Kaolin” are to a more or 
less degree fusible, and therefore impure. The more alkaline 
matter contained in a substance the more fusible it becomes ; when 
this is the case it probably belongs to some other form of clay-like 
mineral. 
In abundance, of good quality, Killicrankie Bay, Flinders 
Island ; Circular Head; Piper River, in extensive beds; Mt. 
Claude; Middlesex Plains; Mt. Housetop; Mt. Bischoff; 
Derby, and places on the north-eastern tin field; about one mile 
south of Alford, Lower Piper River. 
120. KAMMERERITE (a Ripidolite, coloured Red by Chromic 
Acid). 
Occurs massive. and granular in Serpentine with Magnetite, 
North Dundas. (Stitt and Cullingsworth, in Tasmanian 
Exhibition Collection, 1891.) 
121. KERMESITE (Sulphide of Oxide of Antimony). 
A mineral supposed to be this occurs as small red crystals, 
Hay’s P. A. Mine, Castray River. 
122. KYANITE (Anhydrous Silicate of Alumina). 
In characteristic prisms of a pale blue colour, under Mount 
Cameron; near the River Forth (J. Smith). 
Clayton Rivulet (Gould, Pro. Royal Soc. Tas., 1873). 
123. LIMONITE (Hydrated Peroxide of Iron). 
In fibrous radiating masses, Emu River, south of Hampshire 
(W. R. Bell). At Dundas this mineral occurs pseudomorphous 
after Siderite, and is then known locally as ‘Tomahawk Iron.” 
On the banks of the River Tamar extinct Tertiary forms of several 
species of fresh-water shells belonging to the genus Unio occur, 
similarly changed to Limonite. At Beaconsfield crystals of 
Pyrites have been found also altered to this mineral, and at 
Bischoff it forms a portion of the ‘“ Brown Face,” which was 
apparently originally a huge mass of Pyrites containing dis- 
seminated Cassiterite, 
