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OREAS 506b
OREAS 506b was prepared from a blend of porphyry copper-gold ore, barren granodiorite and a minor quantity of Cu-Mo concentrate. The ore was sourced from the Northparkes Mine located in the Central West of New South Wales, Australia. The barren granodiorite was sourced from the mafic, S-Type, Late Devonian Bulla Granodiorite complex located in northern Melbourne, Australia.Twenty-seven commercial analytical laboratories participated in the program to certify the following:
- Gold via 25-40g fire assay with AAS finish, ICP-OES or ICP-MS finish;
- Gold via 15-50g aqua regia digestion with ICP OES or MS finish and AAS finish;
- 4-Acid digestion for full elemental suite ICP-OES/MS finish;
- Aqua regia digestion for full elemental suite ICP-OES/MS and AAS finish.
Gold by instrumental neutron activation analysis (INAA) on 20 x 85mg subsamples was also undertaken at ANSTO, Australia to confirm homogeneity.
Note: Analyte values are indicative only and may change when certified.
| Analyte | Indicative Value | 1SD | Expanded Uncertainty Low | Expanded Uncertainty High | Method |
|---|---|---|---|---|---|
| Cu, Copper (wt.%) | 0.443 | TBD | TBD | TBD | 4-Acid Digestion |
| Au, Gold (ppm) | 0.353 | TBD | TBD | TBD | Pb Fire Assay |
| Mo, Molybdenum (ppm) | 87 | TBD | TBD | TBD | 4-Acid Digestion |
Downloads
Certificate DataPack SDS NRAM (367 KB)Stock
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Pack SizePriceStock Level
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10g Sachet$3.90460,000 +
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