I posted this elsewhere may be of help to some to help determine...

I posted this elsewhere may be of help to some to help determine potential.

Monax Mining Limited (Monax or the Company) is pleased to announce that it has signed a binding termsheet with the owner of three Exploration Licences in the Litchfield area, Northern Territory. Laboratory assay results for samples collected within the project area report high-grade lithium up to 7.55% Li2O and lepidolite-rich rocks up to 2.39 % Li2O (see Table 1 and Plates 1 and 2).

LITHIUM MINERALS are few. Only thirteen are known, of which several are of commercial importance. These are:

• Spodumene LiAl(SiO₃)₂containing 4 to 8 per cent lithia.
• Amblygonite, LiAl(F,OH)PO₄, containing 8 to 10 per cent lithia. “My emphasis today”
• Lepidolite, lithium mica. It has a complex composition which may be written as KliAl (OH,F)₂Al(SiO₄)₃, or K₂Li₄Al₂F₄Si₈O₂₂. It carries 2 to 4 per cent lithia.
• Zinnwaldite, lithium iron mica. It also has a complex chemical composition, Le₂K₂Fe₂Al₄Si₇O₂₄. It contains 2 to 3.5 per cent lithia.
• Petalite, LiAl(Si₂O₅)₂, containing 2 to 4 per cent lithia.
• Triphylite, Li(Fe, Mn)PO₄, containing 2 to 6 per cent.
• Lithiophilite, Li(Mn, Fe)PO₄, containing 2 to 6 per cent lithia.

Out of the lithium minerals, lepodilite has wide-spread occurrence, but it is less favoured by industries than spodumene and amblygonite because of the lower percentage of lithia. Spondumene has become the chief commercial source of lithium because of its regular supply and comparatively high Li₂O content. Petalite is also found in large quantities but its Li₂O percentage is similar to lepidolite. Others have restricted occurrence. Lithium minerals are mostly found in pegmatites.