OREAS 407

OREAS 407 is a massive hematite-apatite ore certified reference material sourced from the Gruvberget Mine of the Svappavaara iron ore operation owned by Luossavaara-Kiirunavaara AB (LKAB) located in Kiruna, Sweden. The CRM contains elevated vanadium and REEs hosted within fluorapatite. Its mineralisation style is iron oxide-apatite (IOA), Kiruna-type and the majority of the magnetite has oxidised to hematite.

  • FeO by acid digestion with titration
  • Extended iron ore elemental suite by lithium borate fusion with XRF finish
  • Thermogravimetry: Loss on Ignition (LOI) at 1000 °C
  • 4-acid digestion with full suite elemental package by ICP-OES and ICP-MS finish
Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Fe, Iron (wt.%) 60.69 0.284 60.30 61.08 Borate Fusion XRF
FeO, Iron(II) oxide (wt.%) 0.992 0.137 0.892 1.093 Classical Wet Chemistry
Al2O3, Aluminium(III) oxide (wt.%) 0.246 0.034 0.222 0.270 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 4.18 0.043 4.14 4.22 Borate Fusion XRF
Cu, Copper (ppm) 94 18 75 113 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 0.039 0.001 0.037 0.041 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 1.10 0.031 1.08 1.12 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.044 0.003 0.041 0.047 Borate Fusion XRF
Ni, Nickel (ppm) 195 11 170 221 Borate Fusion XRF
P, Phosphorus (wt.%) 0.748 0.009 0.739 0.756 Borate Fusion XRF
S, Sulphur (wt.%) 0.013 0.002 0.011 0.016 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 3.49 0.046 3.44 3.53 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.027 0.006 0.020 0.034 Borate Fusion XRF
V, Vanadium (ppm) 527 13 514 541 Borate Fusion XRF
LOI1000, Loss on ignition @1000 °C (wt.%) 2.02 0.044 1.97 2.08 Thermogravimetry
Ag, Silver (ppm) 0.040 0.007 0.024 0.055 4-Acid Digestion
Al, Aluminium (wt.%) 0.147 0.008 0.139 0.154 4-Acid Digestion
As, Arsenic (ppm) 37.8 3.06 35.8 39.8 4-Acid Digestion
Ba, Barium (ppm) 8.71 1.06 7.61 9.82 4-Acid Digestion
Be, Beryllium (ppm) 0.39 0.012 0.38 0.41 4-Acid Digestion
Bi, Bismuth (ppm) 0.064 0.006 0.052 0.076 4-Acid Digestion
Ca, Calcium (wt.%) 2.86 0.128 2.76 2.96 4-Acid Digestion
Cd, Cadmium (ppm) 0.058 0.014 0.041 0.075 4-Acid Digestion
Ce, Cerium (ppm) 143 8 134 151 4-Acid Digestion
Co, Cobalt (ppm) 38.9 1.90 37.2 40.7 4-Acid Digestion
Cr, Chromium (ppm) 21.9 2.3 20.3 23.6 4-Acid Digestion
Cs, Caesium (ppm) < 0.050 IND IND IND 4-Acid Digestion
Cu, Copper (ppm) 87 4.5 82 91 4-Acid Digestion
Dy, Dysprosium (ppm) 3.15 0.097 2.97 3.34 4-Acid Digestion
Er, Erbium (ppm) 1.59 0.053 1.48 1.71 4-Acid Digestion
Eu, Europium (ppm) 1.17 0.045 1.11 1.22 4-Acid Digestion
Fe, Iron (wt.%) 60.39 0.660 59.48 61.30 4-Acid Digestion
Ga, Gallium (ppm) 3.13 0.38 2.86 3.40 4-Acid Digestion
Gd, Gadolinium (ppm) 5.85 0.389 5.39 6.30 4-Acid Digestion
Ge, Germanium (ppm) 0.38 0.08 0.27 0.50 4-Acid Digestion
Hf, Hafnium (ppm) 0.10 0.007 0.09 0.12 4-Acid Digestion
Ho, Holmium (ppm) 0.59 0.009 0.58 0.61 4-Acid Digestion
In, Indium (ppm) 0.041 0.005 0.034 0.049 4-Acid Digestion
K, Potassium (wt.%) 0.034 0.006 0.030 0.037 4-Acid Digestion
La, Lanthanum (ppm) 59 3.5 57 62 4-Acid Digestion
Li, Lithium (ppm) 8.81 0.317 8.46 9.16 4-Acid Digestion
Lu, Lutetium (ppm) 0.20 0.003 0.19 0.21 4-Acid Digestion
Mg, Magnesium (wt.%) 0.609 0.054 0.577 0.640 4-Acid Digestion
Mn, Manganese (wt.%) 0.033 0.002 0.031 0.034 4-Acid Digestion
Mo, Molybdenum (ppm) 5.36 0.235 5.10 5.62 4-Acid Digestion
Na, Sodium (wt.%) 0.024 0.004 0.021 0.026 4-Acid Digestion
Nb, Niobium (ppm) 5.91 0.342 5.62 6.19 4-Acid Digestion
Nd, Neodymium (ppm) 60 2.2 57 64 4-Acid Digestion
Ni, Nickel (ppm) 176 8 170 183 4-Acid Digestion
P, Phosphorus (wt.%) 0.725 0.028 0.700 0.750 4-Acid Digestion
Pb, Lead (ppm) 1.72 0.137 1.52 1.92 4-Acid Digestion
Pr, Praseodymium (ppm) 16.8 0.53 16.2 17.4 4-Acid Digestion
Rb, Rubidium (ppm) 0.92 0.032 0.86 0.98 4-Acid Digestion
Sb, Antimony (ppm) 2.04 0.104 1.90 2.17 4-Acid Digestion
Sc, Scandium (ppm) 0.51 0.07 0.43 0.60 4-Acid Digestion
Se, Selenium (ppm) < 1.00 IND IND IND 4-Acid Digestion
Sm, Samarium (ppm) 8.06 0.240 7.72 8.40 4-Acid Digestion
Sn, Tin (ppm) 4.83 0.62 4.35 5.31 4-Acid Digestion
Sr, Strontium (ppm) 22.8 1.14 21.8 23.8 4-Acid Digestion
Ta, Tantalum (ppm) 0.18 0.009 0.16 0.20 4-Acid Digestion
Tb, Terbium (ppm) 0.60 0.008 0.58 0.62 4-Acid Digestion
Te, Tellurium (ppm) 0.090 0.018 0.060 0.120 4-Acid Digestion
Th, Thorium (ppm) 9.24 0.414 8.83 9.65 4-Acid Digestion
Ti, Titanium (wt.%) 0.012 0.001 0.011 0.013 4-Acid Digestion
Tl, Thallium (ppm) < 0.020 IND IND IND 4-Acid Digestion
Tm, Thulium (ppm) 0.20 0.007 0.19 0.22 4-Acid Digestion
U, Uranium (ppm) 2.42 0.142 2.29 2.55 4-Acid Digestion
V, Vanadium (ppm) 493 35 468 518 4-Acid Digestion
W, Tungsten (ppm) 4.47 0.301 4.20 4.74 4-Acid Digestion
Y, Yttrium (ppm) 17.0 0.78 16.2 17.8 4-Acid Digestion
Yb, Ytterbium (ppm) 1.27 0.046 1.17 1.36 4-Acid Digestion
Zn, Zinc (ppm) 26.6 1.43 25.3 28.0 4-Acid Digestion
Zr, Zirconium (ppm) 3.56 0.206 3.37 3.75 4-Acid Digestion
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