BY W. F. PETTERD. 43 
Near Conara; Piper River; Mount Claude; Flinders Island ; 
Mount Bischoff. Abundant at Mount Lyell, often containing 
Native Copper; Blue Tier, near Beaconsfield ; often met with 
on the North-east tin fields, where it apparently results from the 
decomposition of triclinic Felspars of stanniferous Granite. 
128. LEAD, NATIVE. 
I received two minute specimens of this rare native metal from 
the South Nevada mine at Dundas. One of these I carefully 
examined, with the result that it proved to be this metal. 
129. LEPIDOLITE (Lithia Mica). 
Occurs ina dyke between metamorphic slate and greenstone 
(Diorite). It varies in thickness from five to eight inches. 
Mount Ramsay and near the Arthur River (W. R. Bell). The 
Mica of stanniferous matrices usually contains Lithia. North-east 
Coast. 
130. LAUMONTITE (Hydrated Silicate of Alumina and 
Calcium). 
A Zeolite of very decomposable nature, that occurs in cavities 
in a rock that abuts upon Granite. The colour is flesh-red, 
but fades on exposure. To preserve the specimens it is absolutely 
necessary to coat the mineral with a varnish or gum to exclude 
the air. 
Hampshire Hills. 
131. LEADHILLITE (Sulphato-carbonate of Lead). 
This mineral is characterised by its pearly lustre on the cleavage 
face, grey colour, and chemical reactions. 
At the Godkin mine, Whvte River, it is often met with in the 
form of amorphous nodular masses without any trace of 
crystallization; but more rarely minute crystals may be obtained 
attached to the larger lumps. It is found embedded in a Kaolinic 
substance, associated with earthy Pyromorphite and Cerussite. It 
also occurs at several of the Dundas mines, but always intimately 
mixed with allied lead minerals. 
In Australia it commonly occurs, but, as here, in limited quantity 
and usually in the amorphous form. 
132. MALACHITE (Green Carbonate of Copper). 
This mineral, which is so abundant at several of the mining 
districts of Australia, is here comparatively rare, and only known 
to occur in a thin coating or incrustation. 
Heazlewood ; Cascade; Mackintosh River; Badger Head; 
Frankford, &ce. 
133. MELANTERITE (Iron Vitriol). 
Doubtless originates from the decomposition of Pyrites ; it is 
