ZONES OF HIGH - GRADE MASSIVE PRIMARY ORE (CHALCOPYRITE) EXPOSED AT ROCKLANDS FOR THE FIRST TIME - JUST 10m FROM SURFACE CO - MINGLED CHALCOPYRITE WITH MASSIVE CHALCOCITE OVER WIDE AREAS XRF SAMPLED GRADES UP TO 56% Cu Mining in the Las Minerale East - extension (LM1 - E) Pit, immediately south - east of the main LM1 Pit, has exposed the upper zone of extremely high - grade primary copper mineralisation (chalcopyrite) and is associated with wide zones of massive and soft sooty chalcocite, just 10m from surface. Last week the Company announced surface excavation in the same area exposed wide zones (~65m wide) of extremely high - grade oxide copper mineralisation including copper minerals malachite, azurite, cuprite, chalcocite and chalcopyrite with grades up to 49% Cu, immediately below shallow river - flat soils starting from just 0.4m depth (see ASX announcement - 10th Feb 2014) As a result of these two welcome developments, significantly more ore has been sent to the stockpiles than was anticipated by the mining schedule, including; ? Average copper grades estimated up to 10 times higher than indicated in the mining schedule, but not unexpected by CuDeco’s geological team. ? Significant zones of soft sooty chalcocite (chalcocite contains 79.8% Cu), being mined that were not identified during resource drill - hole geological logging. ? Chalcocite - rich clay zones identified (consistency of soil) with average grades of ~45% Cu, previously not known to exist - no record of recovery during drill - hole sampling. ? Drill collars identified that passed through high - grade (+40% Cu) zones of chalcocite - rich clays and soft sooty chalcocite - yet logging records show no copper minerals identified and assay results show only low - grade copper, indicating possible mineral loss during drilling. ? DSO grade mineralisation (+20% Cu) sent to stockpiles from areas where maximum grade expectations were just 3.5% Cu based on the resource model.
CDU Price at posting:
$1.78 Sentiment: Buy Disclosure: Held
