OREAS 151c

OREAS 151c is one of three (third generation) porphyry Cu-Au certified reference materials (CRMs). It has been prepared from copper ore drilling reject material from 27 drill holes from the Waisoi district, Viti Levu, Fiji, with the addition of a minor quantity of Cu concentrate (0.1%) and barren granodiorite (10%). The two deposits in the Waisoi district are the Waisoi East deposit (quartz porphyry) and the Waisoi West deposit (diorite porphyry). Copper mineralisation in the region is accompanied by stockwork quartz veinlets and is characterised by bornite-chalcopyrite-pyrite assemblages formed under a high sulphidation environment.
Note: Analyte values are indicative only and may change when certified.

Analyte Indicative Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Au, Gold (ppm) 0.078 TBD TBD TBD Pb Fire Assay
Cu, Copper (wt.%) 0.238 TBD TBD TBD 4-Acid Digestion
Ag, Silver (ppm) 0.971 TBD TBD TBD 4-Acid Digestion
Certificate DataPack SDS NRAM (255 KB)
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