OREAS 181b
Артикул: 181b
OREAS 181b has been prepared from a blend of Ni-Co lateritic ores and barren
siliclastic sedimentary rock sourced from Victoria, Australia. The Ni-Co
lateritic ores were sourced predominantly from the north-eastern Goldfields of
Western Australia. Minor additions of Ni-Co lateritic ores from other regions
were also added. The lateritic ores formed from prolonged lateritic weathering
of Archaean (Yilgarn Craton) olivine rich ultramafic/komatiite flows. Grades of
>1% Ni were generated in zones of more intense weathering associated with
faulting and bedrock alteration. Ni-Co nontronitic (Fe-Ni smectite clays)
siliceous ores formed with a goethitic overprint in the upper laterite
profile.
Twenty-six commercial analytical laboratories participated in the program to
certify the elements reported below:
Lithium borate fusion whole rock analysis package with X-ray fluorescence
Thermogravimetry: Loss on Ignition (LOI) at 1000 °C
Sodium peroxide/borate fusion with full suite ICP-OES or ICP-MS elemental
packages
Total C and S by infrared combustion furnace
Homogeneity was assessed using XRF analysis on 12 pulp samples (20 g each)
from six sampling units. An ANOVA test was performed to compare within- and
between-unit variances, providing a statistical measure of uniformity and
confirming that all units belong to the same population.
Specifications
- State: oxide
- Matrix: transitional (saprolite/ limonite)
- Mineralisation: lateritic nickel
- CRM Group: Ni laterite ore
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Ni, Nickel (wt.%) | 0.520 | 0.014 | 0.508 | 0.532 | Borate Fusion XRF |
| Co, Cobalt (ppm) | 458 | 8 | 443 | 473 | Borate Fusion XRF |
| Sc, Scandium (ppm) | 19.8 | 0.92 | 18.7 | 20.8 | Borate / Peroxide Fusion ICP |
| Al2O3, Aluminium(III) oxide (wt.%) | 7.20 | 0.095 | 7.11 | 7.28 | Borate Fusion XRF |
| BaO, Barium oxide (ppm) | 238 | 42 | 167 | 310 | Borate Fusion XRF |
| CaO, Calcium oxide (wt.%) | 0.364 | 0.007 | 0.355 | 0.373 | Borate Fusion XRF |
| Cr2O3, Chromium(III) oxide (wt.%) | 0.657 | 0.014 | 0.645 | 0.669 | Borate Fusion XRF |
| Cu, Copper (ppm) | < 50 | IND | IND | IND | Borate Fusion XRF |
| Fe2O3, Iron(III) oxide (wt.%) | 34.61 | 0.324 | 34.31 | 34.91 | Borate Fusion XRF |
| K2O, Potassium oxide (wt.%) | 0.733 | 0.012 | 0.719 | 0.747 | Borate Fusion XRF |
| MgO, Magnesium oxide (wt.%) | 5.77 | 0.074 | 5.72 | 5.82 | Borate Fusion XRF |
| MnO, Manganese oxide (wt.%) | 0.174 | 0.006 | 0.171 | 0.178 | Borate Fusion XRF |
| Na2O, Sodium oxide (wt.%) | 0.330 | 0.026 | 0.306 | 0.353 | Borate Fusion XRF |
| P2O5, Phosphorus(V) oxide (wt.%) | 0.035 | 0.004 | 0.031 | 0.040 | Borate Fusion XRF |
| SiO2, Silicon dioxide (wt.%) | 38.83 | 0.379 | 38.45 | 39.21 | Borate Fusion XRF |
| Sn, Tin (ppm) | < 50 | IND | IND | IND | Borate Fusion XRF |
| SO3, Sulphur trioxide (wt.%) | 0.267 | 0.020 | 0.247 | 0.288 | Borate Fusion XRF |
| TiO2, Titanium dioxide (wt.%) | 0.332 | 0.010 | 0.323 | 0.342 | Borate Fusion XRF |
| V2O5, Vanadium(V) oxide (ppm) | 165 | 29 | 111 | 220 | Borate Fusion XRF |
| Zn, Zinc (ppm) | 92 | 14 | 72 | 112 | Borate Fusion XRF |
| LOI1000, Loss on ignition @1000 °C (wt.%) | 9.78 | 0.239 | 9.59 | 9.97 | Thermogravimetry |
| Al, Aluminium (wt.%) | 3.74 | 0.054 | 3.67 | 3.81 | Borate / Peroxide Fusion ICP |
| As, Arsenic (ppm) | 115 | 16 | 94 | 136 | Borate / Peroxide Fusion ICP |
| B, Boron (ppm) | 354 | 42 | 304 | 405 | Borate / Peroxide Fusion ICP |
| Ba, Barium (ppm) | 210 | 6 | 203 | 218 | Borate / Peroxide Fusion ICP |
| Be, Beryllium (ppm) | 1.07 | 0.096 | 0.91 | 1.23 | Borate / Peroxide Fusion ICP |
| Bi, Bismuth (ppm) | 4.89 | 0.94 | 3.64 | 6.14 | Borate / Peroxide Fusion ICP |
| Ca, Calcium (wt.%) | 0.258 | 0.037 | 0.229 | 0.286 | Borate / Peroxide Fusion ICP |
| Cd, Cadmium (ppm) | < 10.0 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| Ce, Cerium (ppm) | 34.1 | 3.6 | 29.4 | 38.7 | Borate / Peroxide Fusion ICP |
| Co, Cobalt (ppm) | 442 | 21 | 420 | 464 | Borate / Peroxide Fusion ICP |
| Cr, Chromium (wt.%) | 0.445 | 0.011 | 0.432 | 0.458 | Borate / Peroxide Fusion ICP |
| Cs, Caesium (ppm) | 2.68 | 0.190 | 2.38 | 2.97 | Borate / Peroxide Fusion ICP |
| Cu, Copper (ppm) | 40.7 | 2.09 | 37.3 | 44.2 | Borate / Peroxide Fusion ICP |
| Dy, Dysprosium (ppm) | 2.08 | 0.203 | 1.86 | 2.30 | Borate / Peroxide Fusion ICP |
| Er, Erbium (ppm) | 1.16 | 0.091 | 1.01 | 1.32 | Borate / Peroxide Fusion ICP |
| Eu, Europium (ppm) | 0.54 | 0.07 | 0.42 | 0.66 | Borate / Peroxide Fusion ICP |
| Fe, Iron (wt.%) | 24.12 | 0.441 | 23.45 | 24.78 | Borate / Peroxide Fusion ICP |
| Ga, Gallium (ppm) | 9.38 | 0.682 | 8.31 | 10.46 | Borate / Peroxide Fusion ICP |
| Gd, Gadolinium (ppm) | 2.07 | 0.23 | 1.78 | 2.37 | Borate / Peroxide Fusion ICP |
| Ge, Germanium (ppm) | 1.78 | 0.35 | 1.01 | 2.55 | Borate / Peroxide Fusion ICP |
| Ho, Holmium (ppm) | 0.40 | 0.021 | 0.36 | 0.43 | Borate / Peroxide Fusion ICP |
| In, Indium (ppm) | < 0.10 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| K, Potassium (wt.%) | 0.626 | 0.056 | 0.575 | 0.678 | Borate / Peroxide Fusion ICP |
| La, Lanthanum (ppm) | 13.7 | 1.16 | 12.1 | 15.4 | Borate / Peroxide Fusion ICP |
| Li, Lithium (ppm) | 12.7 | 3.5 | 8.8 | 16.6 | Borate / Peroxide Fusion ICP |
| Lu, Lutetium (ppm) | 0.16 | 0.03 | 0.11 | 0.20 | Borate / Peroxide Fusion ICP |
| Mg, Magnesium (wt.%) | 3.40 | 0.089 | 3.30 | 3.49 | Borate / Peroxide Fusion ICP |
| Mn, Manganese (wt.%) | 0.134 | 0.003 | 0.128 | 0.140 | Borate / Peroxide Fusion ICP |
| Mo, Molybdenum (ppm) | 2.37 | 0.52 | 1.61 | 3.14 | Borate / Peroxide Fusion ICP |
| Nd, Neodymium (ppm) | 11.2 | 0.68 | 10.4 | 11.9 | Borate / Peroxide Fusion ICP |
| Ni, Nickel (wt.%) | 0.513 | 0.012 | 0.499 | 0.527 | Borate / Peroxide Fusion ICP |
| Pr, Praseodymium (ppm) | 3.17 | 0.315 | 2.76 | 3.59 | Borate / Peroxide Fusion ICP |
| Rb, Rubidium (ppm) | 33.4 | 1.81 | 31.4 | 35.4 | Borate / Peroxide Fusion ICP |
| Re, Rhenium (ppm) | < 0.10 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| S, Sulphur (wt.%) | 0.097 | 0.018 | 0.074 | 0.121 | Borate / Peroxide Fusion ICP |
| Se, Selenium (ppm) | < 20.0 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| Si, Silicon (wt.%) | 18.04 | 0.361 | 17.58 | 18.50 | Borate / Peroxide Fusion ICP |
| Sm, Samarium (ppm) | 2.28 | 0.31 | 1.91 | 2.65 | Borate / Peroxide Fusion ICP |
| Sr, Strontium (ppm) | 32.5 | 2.80 | 29.1 | 35.9 | Borate / Peroxide Fusion ICP |
| Tb, Terbium (ppm) | 0.33 | 0.05 | 0.26 | 0.39 | Borate / Peroxide Fusion ICP |
| Te, Tellurium (ppm) | < 1.00 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| Th, Thorium (ppm) | 4.62 | 0.50 | 4.02 | 5.23 | Borate / Peroxide Fusion ICP |
| Ti, Titanium (wt.%) | 0.196 | 0.006 | 0.187 | 0.205 | Borate / Peroxide Fusion ICP |
| Tl, Thallium (ppm) | < 0.50 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| Tm, Thulium (ppm) | 0.17 | 0.014 | 0.14 | 0.20 | Borate / Peroxide Fusion ICP |
| U, Uranium (ppm) | 1.02 | 0.16 | 0.80 | 1.25 | Borate / Peroxide Fusion ICP |
| V, Vanadium (ppm) | 85 | 6.6 | 78 | 91 | Borate / Peroxide Fusion ICP |
| W, Tungsten (ppm) | 22.9 | 3.0 | 18.5 | 27.4 | Borate / Peroxide Fusion ICP |
| Y, Yttrium (ppm) | 10.5 | 0.61 | 9.5 | 11.4 | Borate / Peroxide Fusion ICP |
| Yb, Ytterbium (ppm) | 1.15 | 0.098 | 0.99 | 1.31 | Borate / Peroxide Fusion ICP |
| Zn, Zinc (ppm) | 95 | 7.1 | 87 | 104 | Borate / Peroxide Fusion ICP |
| C, Carbon (wt.%) | 1.10 | 0.029 | 1.07 | 1.12 | Infrared Combustion |
| S, Sulphur (wt.%) | 0.102 | 0.009 | 0.092 | 0.112 | Infrared Combustion |
Характеристики продукта
Сертифицированные справочные значения
| Аналит | Сертифицированное значение | Неопределённость (1SD) | 95% доверительный нижний | 95% доверительный верхний | Метод |
|---|
SD = стандартное отклонение | CL = 95% доверительные пределы
Методы: AR = царская водка, 4-Acid = четырёхкислотное разложение, LBF = сплавление с боратом лития, FA/AAS = пробирный анализ / AAS, LECO = анализ горения LECO
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