Newly Released Gold Certified Reference Materials Now Available
We are pleased to announce the release of 13 new Certified Reference Materials (CRMs), including the return of the highly sought after gold CRM OREAS 240c (5.51 ppm Au), now available to replace its predecessor OREAS 240b (5.65 ppm Au).
This latest release ensures continued supply of a widely used gold reference material for laboratories requiring robust quality control in ore-grade gold analysis.
About OREAS 240c
OREAS 240c has been prepared from a blend of gold-bearing ore sourced predominantly from the Frogs Leg Gold Mine. The material represents quartz–carbonate vein-hosted gold mineralisation within mafic–ultramafic greenstones, providing a well-characterised matrix suitable for routine assay validation and method performance monitoring.
Fifty-three commercial analytical laboratories participated in the interlaboratory program used to certify the reported elements, ensuring a robust statistical foundation for assigned values and associated uncertainties.
Explore the full details of newly released materials by selecting the product codes in the table below.
OREAS Releases
| OREAS ID | Description | Replaces |
| 238c | Metasediments, Orogenic gold, (3.17ppm Au) | 238b |
| 240c | Greenstone, Orogenic gold, (5.51ppm Au) | 240b |
| 243b | Greenstone, Orogenic gold, (12.08ppm Au) | 243 |
| 265 | Siliclastic sediment and basaltic scoria, Orogenic, (1.08ppm Au) | 253c |
| 270 | Metasediment/granite, Orogenic gold, (14.9ppb Au) | 260 |
| 612 | Rhyodacite, Low sulphidation epithermal, (62.3ppb Au) | NEW |
| 613 | Rhyodacite, High sulphidation epithermal, (5.21ppm Au, 299ppm Ag, 1.03% Cu) | 603c |
| 614 | Rhyodacite, High sulphidation epithermal, (1.50ppm Au, 494ppm Ag, 2.08% Cu) | 604b |
| 615 | Rhyodacite, High sulphidation epithermal, (1.79ppm Au, 1009ppm Ag, 4.99% Cu) | 605b |
| 340 | Quartz-apatite-garnet (BHT), (Zn-Pb-Ag tailings) | NEW |
| 909 | Carbonate, Skarn, (Au-Cu ore) | NEW |
| 63 | Andesitic volcanics, Low sulphidation epithermal, (4.29ppm Au, 220ppm Ag) | NEW |
| 64 | Andesitic volcanics, Low sulphidation epithermal, (665ppm Ag, 16ppm Au) | NEW |
Coming Soon
| OREAS ID | Description | Replaces |
| 702 | W-Mo-Bi-F ore (0.25% W, 0.06% Mo, 0.03% Bi, 0.22% F) | NEW |
| 703 | W-Mo-Bi-F ore (0.56% W, 0.1% Mo, 0.06% Bi, 0.5% F) | NEW |
| 80 | Ni-Co-PGE Sulphide ore (0.24% Ni, 92ppm Co, 55ppm Cu) | 70b |
| 81 | Ni-Co-PGE Sulphide ore (0.7% Ni, 134ppm Co) | 72b |
| 84 | Ni-Co-PGE Sulphide ore (10.8% Ni, 1607ppm Co) | 77a |
| 13c | Ni-Cu-PGE ore (0.23% Ni, 0.24% Cu) | 13b |
| 680b | Ni-Cu-PGE ore (2.15% Ni, 0.91% Cu) | 680 |
| 683b | PGE ore (208ppb Au, 1756ppb Pt, 836ppb Pd) | 683 |
| 188 | Ni-Co Laterite ore (1.64% Ni, 340ppm Co) | 189 |