Metallic Minerals Potential in Timor Leste
A brief summary of minerals occurence
Copper
The mineralisation occurs as massive sulphides, the veinlets containing
chalcopyrite and pyrite in the ultra basic units, with extensive
serpentinites alteration and with evidence of intrusive diorite/diabase.
In the Ossuala area (Baucau district) sampling by Allied Mining Company
(Wittouck, 1937) returned values of 10% Cu, 3 g/t Au and 170 g/t Ag
Gold
The gold mineralisation has been observed in several forms as quartz,
quartz-calcite and calcite veins hosted by shale/slate or schist. The vein
are pyritized and mineralized with gold. In Hilimanu area the
mineralisation occurs in the metamorphosed igneous rock. The
mineralisation are associated with quartz veins ( 0,5 - 12 m wide)
containing chalcopyrite, limonite and calcedony. Some samples analysed
indicates average grade of 0,5 g/t Au and 50 g/t Ag.View entire presentation