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OREAS 712
OREAS 712 is a primary CRM prepared from gravity-separated fractions of the Westland Heavy Mineral Sands deposit. The material contains elevated levels of TiO₂, Fe, and Zr and represents a composite of low-, high-, and concentrate-grade heavy mineral sands. It is designed for use in the validation and quality control of methods targeting titanium-, iron-, and zirconium-bearing minerals in sediment-hosted mineral sands systems.
OREAS 712 has been characterized using the following methods:
- Borate Fusion XRF- Majors and some traces
- Thermogravimetric LOI at 1000 °C
- 4-Acid – Full ICP-OES and MS elemental suites
Certified values for applicable analytes are operationally defined for each method, with results under OREAS ISO 17034 scope of accreditation.
Note: Analyte values are indicative only and may change when certified.
| Analyte | Indicative Value | 1SD | Expanded Uncertainty Low | Expanded Uncertainty High | Method |
|---|---|---|---|---|---|
| TiO2, Titanium dioxide (wt.%) | 12.00 | TBD | TBD | TBD | Borate Fusion XRF |
| Zr, Zirconium (wt.%) | 0.110 | TBD | TBD | TBD | Borate Fusion XRF |
| Fe, Iron (wt.%) | 14.34 | TBD | TBD | TBD | Borate Fusion XRF |
| TREY, Total Rare Earth and Yttrium (wt.%) | 0.084 | TBD | TBD | TBD | Borate Fusion XRF |
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Specifications
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CRM State:
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Matrix:
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Mineralisation:
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CRM Group(s):