Mozambique
Soutce: Geology.com
Source: Geology.com
The Alto Ligonha pegmatite belt in
northern Mozambique contains a number of historic tantalum and lithium
mine workings including the Muiane mine. At some Alto Ligonha
pegmatites, lithium (lepidolite) and caesium (mostly pollucite) were
mined as by products (in addition to gemstones and industrial minerals).
The most important Li-mineral deposits are those of Morrua, Muiane, Moneiea and Munhamola. The Chigaio prospect,
located 9 kilometres south of Vundu, is a substantial
lithium‐tantalum‐tin occurrence reportedly exhibiting many similarities
to the Greenbushes lithium deposit in Western Australia.
HAMC Lda
is a private company and is the owner of the mining concessions for the
three largest known pegmatites in Zambezia, northern Mozambique. In the
case of Morrua
they have used the historic core drilling that was done (some 16,500m)
for the definition of a JORC compliant tantalum resource (some 5.3Mt at
500ppm) and have estimated, using a 0.6% cut-off, 22Mt of Li2O
(alternatively, applying a 0.9% cut-off 8.8Mt They estimate the
Marropino tailings that were already mined and milled for tantalite, at
5.5Mt
