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
								

													
					

				


				


									
Downloads

											Certificate
					
											DataPack
					SDS NRAM (255 KB)				

					

													
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Specifications