OREAS 13c
SKU: 13c
OREAS 13c is a multi-element Certified Reference Material containing platinum
group elements (PGEs), copper, nickel and gold dispersed in a gabbronorite
matrix.
The gabbronorite host was obtained from a mafic to ultramafic intrusive
complex (Giles Complex) within Mesoproterozoic granulites of the Musgrave
Province, Western Australia. To this barren matrix, carefully proportioned
additions of ore materials were blended, including high-grade nickel sulphide
ores from the Cosmos district (Western Australia) and Glencore’s Sudbury
operations (Canada), a copper-rich ore from the Cobar region of New South Wales,
PGE ores from the Bushveld Complex (Dishaba and UG2 Reef, South Africa), and a
high-grade gold ore from the Frogs Leg deposit in Western Australia.
OREAS 13c has been characterized using the following methods:
Full ICP-OES and ICP-MS elemental suites by 4-acid (HNO3-HF-HClO4-HCl)
digestion
Sodium peroxide fusion or lithium borate fusion with full ICP-OES and
ICP-MS suites
Au, Pt and Pd by lead collection fire assay with ICP-OES and ICP-MS
Au, Pt, Pd, Ir, Rh and Ru by nickel sulphide (NiS) collection fire assay
with ICP-OES and ICP-MS
Certified values for applicable analytes are operationally defined for each
method, with results under OREAS ISO 17034 scope of
accreditation.
Specifications
- State: primary
- Matrix: gabbronorite
- Mineralisation: magmatic Ni-Cu-PGE
- CRM Group: Ni-Cu-PGE, Au, Au-Pd-Pt (PGE) ore
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Ni, Nickel (wt.%) | 0.229 | TBD | TBD | TBD | 4-Acid Digestion |
| Cu, Copper (wt.%) | 0.236 | TBD | TBD | TBD | 4-Acid Digestion |
| Au, Gold (ppb) | 211 | TBD | TBD | TBD | Pb Fire Assay |
| Pt, Platinum (ppb) | 204 | TBD | TBD | TBD | Pb Fire Assay |
| Pd, Palladium (ppb) | 151 | TBD | TBD | TBD | Pb Fire Assay |
| Cr, Chromium (wt.%) | 0.690 | TBD | TBD | TBD | 4-Acid Digestion |
| S, Sulphur (wt.%) | 0.670 | TBD | TBD | TBD | 4-Acid Digestion |
Product Specifications
Certified Reference Values
| Analyte | Certified Value | Uncertainty (1SD) | 95% Confidence Low | 95% Confidence High | Method |
|---|
SD = Standard Deviation | CL = 95% Confidence Limits
Methods: AR = Aqua Regia, 4-Acid = 4-Acid Digestion, LBF = Lithium Borate Fusion, FA/AAS = Fire Assay with Atomic Absorption, LECO = LECO Combustion Analysis
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