OREAS 20a

OREAS 20a has been prepared from barren I-Type hornblende-bearing granodiorite sourced from the Upper Devonian Lysterfield granodiorite complex located in south-eastern Melbourne, Australia. It is characterised for multiple analytical methodologies for full ICP-OES and ICP-MS elemental suites and contains very low background gold of less than 3 parts per billion.
Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Au, Gold (ppb) < 3 IND IND IND Pb Fire Assay
Al2O3, Aluminium(III) oxide (wt.%) 15.28 0.105 15.23 15.34 Borate Fusion XRF
BaO, Barium oxide (ppm) 1239 78 1191 1286 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 3.61 0.020 3.60 3.62 Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 5.33 0.029 5.31 5.34 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 4.00 0.027 3.98 4.01 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 2.40 0.030 2.38 2.41 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.070 0.001 0.070 0.071 Borate Fusion XRF
Na2O, Sodium oxide (wt.%) 2.73 0.054 2.70 2.75 Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.231 0.004 0.229 0.232 Borate Fusion XRF
S, Sulphur (wt.%) 0.063 0.001 0.063 0.064 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 64.49 0.339 64.33 64.64 Borate Fusion XRF
Sr, Strontium (ppm) 292 36 267 316 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.828 0.011 0.822 0.834 Borate Fusion XRF
V2O5, Vanadium(V) oxide (ppm) 205 17 196 214 Borate Fusion XRF
LOI1000, Loss On Ignition @1000 °C (wt.%) 0.611 0.042 0.580 0.641 Thermogravimetry
Al, Aluminium (wt.%) 7.99 0.157 7.79 8.19 Borate / Peroxide Fusion ICP
Ba, Barium (ppm) 1082 31 1065 1099 Borate / Peroxide Fusion ICP
Be, Beryllium (ppm) 3.60 0.66 3.10 4.09 Borate / Peroxide Fusion ICP
Ca, Calcium (wt.%) 2.61 0.047 2.57 2.64 Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 82 2.6 81 83 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 13.7 0.68 13.0 14.4 Borate / Peroxide Fusion ICP
Cr, Chromium (ppm) 87 10 81 93 Borate / Peroxide Fusion ICP
Cs, Caesium (ppm) 15.3 0.69 14.9 15.7 Borate / Peroxide Fusion ICP
Cu, Copper (ppm) 46.5 4.15 43.6 49.3 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 5.24 0.280 5.12 5.36 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 3.08 0.140 3.01 3.16 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 1.44 0.078 1.40 1.49 Borate / Peroxide Fusion ICP
Fe, Iron (wt.%) 3.78 0.085 3.71 3.85 Borate / Peroxide Fusion ICP
Ga, Gallium (ppm) 19.4 1.14 18.7 20.0 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 5.79 0.296 5.63 5.95 Borate / Peroxide Fusion ICP
Hf, Hafnium (ppm) 7.91 0.411 7.68 8.15 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 1.07 0.049 1.04 1.10 Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 3.34 0.070 3.28 3.39 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 41.9 1.99 40.9 43.0 Borate / Peroxide Fusion ICP
Li, Lithium (ppm) 37.5 2.66 34.4 40.6 Borate / Peroxide Fusion ICP
Lu, Lutetium (ppm) 0.45 0.028 0.43 0.47 Borate / Peroxide Fusion ICP
Mg, Magnesium (wt.%) 1.45 0.025 1.43 1.47 Borate / Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.054 0.001 0.053 0.055 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 35.2 1.10 34.7 35.7 Borate / Peroxide Fusion ICP
Ni, Nickel (ppm) 40.6 4.2 38.6 42.6 Borate / Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.099 0.005 0.097 0.101 Borate / Peroxide Fusion ICP
Pb, Lead (ppm) 21.4 1.73 19.2 23.6 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 9.36 0.359 9.14 9.58 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 233 10 228 239 Borate / Peroxide Fusion ICP
Si, Silicon (wt.%) 30.20 0.414 29.78 30.63 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 6.66 0.199 6.59 6.73 Borate / Peroxide Fusion ICP
Sn, Tin (ppm) 4.07 0.57 3.99 4.16 Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 299 12 292 307 Borate / Peroxide Fusion ICP
Ta, Tantalum (ppm) 1.60 0.106 1.54 1.66 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.88 0.051 0.84 0.92 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 22.0 0.82 21.6 22.3 Borate / Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.503 0.011 0.493 0.513 Borate / Peroxide Fusion ICP
Tl, Thallium (ppm) 1.14 0.11 1.05 1.23 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 0.45 0.015 0.45 0.46 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 6.69 0.358 6.57 6.81 Borate / Peroxide Fusion ICP
V, Vanadium (ppm) 114 10 107 120 Borate / Peroxide Fusion ICP
W, Tungsten (ppm) 3.85 0.75 3.56 4.14 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 29.2 0.99 28.6 29.8 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 2.96 0.195 2.90 3.02 Borate / Peroxide Fusion ICP
Zr, Zirconium (ppm) 303 23 287 319 Borate / Peroxide Fusion ICP
Ag, Silver (ppm) 0.061 0.007 0.054 0.068 4-Acid Digestion
Al, Aluminium (wt.%) 7.72 0.316 7.54 7.90 4-Acid Digestion
As, Arsenic (ppm) 17.0 2.1 15.9 18.1 4-Acid Digestion
Ba, Barium (ppm) 1070 43 1047 1092 4-Acid Digestion
Be, Beryllium (ppm) 3.65 0.218 3.53 3.78 4-Acid Digestion
Bi, Bismuth (ppm) 0.14 0.02 0.13 0.15 4-Acid Digestion
Ca, Calcium (wt.%) 2.52 0.090 2.48 2.57 4-Acid Digestion
Cd, Cadmium (ppm) 0.086 0.015 0.078 0.093 4-Acid Digestion
Ce, Cerium (ppm) 77 3.4 75 79 4-Acid Digestion
Co, Cobalt (ppm) 13.4 0.53 13.1 13.7 4-Acid Digestion
Cr, Chromium (ppm) 65 4.9 62 68 4-Acid Digestion
Cs, Caesium (ppm) 15.2 0.69 14.8 15.6 4-Acid Digestion
Cu, Copper (ppm) 45.4 2.50 44.1 46.8 4-Acid Digestion
Dy, Dysprosium (ppm) 5.15 0.214 5.01 5.29 4-Acid Digestion
Er, Erbium (ppm) 2.94 0.179 2.77 3.12 4-Acid Digestion
Eu, Europium (ppm) 1.42 0.124 1.30 1.55 4-Acid Digestion
Fe, Iron (wt.%) 3.60 0.113 3.54 3.65 4-Acid Digestion
Ga, Gallium (ppm) 19.6 0.41 19.4 19.8 4-Acid Digestion
Gd, Gadolinium (ppm) 5.56 0.363 5.28 5.84 4-Acid Digestion
Ge, Germanium (ppm) 0.17 0.03 0.13 0.20 4-Acid Digestion
Hf, Hafnium (ppm) 2.89 0.172 2.81 2.98 4-Acid Digestion
Ho, Holmium (ppm) 1.00 0.048 0.95 1.04 4-Acid Digestion
In, Indium (ppm) 0.050 0.006 0.047 0.053 4-Acid Digestion
K, Potassium (wt.%) 3.27 0.085 3.24 3.31 4-Acid Digestion
La, Lanthanum (ppm) 36.5 3.02 34.9 38.2 4-Acid Digestion
Li, Lithium (ppm) 38.5 2.18 37.4 39.6 4-Acid Digestion
Lu, Lutetium (ppm) 0.40 0.021 0.37 0.42 4-Acid Digestion
Mg, Magnesium (wt.%) 1.36 0.059 1.33 1.39 4-Acid Digestion
Mn, Manganese (wt.%) 0.052 0.001 0.051 0.052 4-Acid Digestion
Mo, Molybdenum (ppm) 3.25 0.277 3.13 3.36 4-Acid Digestion
Na, Sodium (wt.%) 1.98 0.052 1.96 2.00 4-Acid Digestion
Nb, Niobium (ppm) 20.4 1.13 19.7 21.0 4-Acid Digestion
Nd, Neodymium (ppm) 33.0 0.79 32.7 33.3 4-Acid Digestion
Ni, Nickel (ppm) 39.0 1.63 38.2 39.7 4-Acid Digestion
P, Phosphorus (wt.%) 0.101 0.004 0.099 0.102 4-Acid Digestion
Pb, Lead (ppm) 21.9 0.94 21.4 22.3 4-Acid Digestion
Pr, Praseodymium (ppm) 9.14 0.513 8.65 9.63 4-Acid Digestion
Rb, Rubidium (ppm) 218 17 208 227 4-Acid Digestion
S, Sulphur (wt.%) 0.064 0.004 0.061 0.066 4-Acid Digestion
Sb, Antimony (ppm) 0.57 0.042 0.55 0.58 4-Acid Digestion
Sc, Scandium (ppm) 12.3 0.84 11.9 12.7 4-Acid Digestion
Sm, Samarium (ppm) 6.60 0.414 6.20 6.99 4-Acid Digestion
Sn, Tin (ppm) 4.03 0.195 3.91 4.14 4-Acid Digestion
Sr, Strontium (ppm) 296 8 292 299 4-Acid Digestion
Ta, Tantalum (ppm) 1.56 0.083 1.51 1.60 4-Acid Digestion
Tb, Terbium (ppm) 0.86 0.044 0.82 0.90 4-Acid Digestion
Th, Thorium (ppm) 21.9 1.17 21.3 22.5 4-Acid Digestion
Ti, Titanium (wt.%) 0.489 0.015 0.480 0.497 4-Acid Digestion
Tl, Thallium (ppm) 1.13 0.065 1.10 1.16 4-Acid Digestion
Tm, Thulium (ppm) 0.43 0.036 0.39 0.47 4-Acid Digestion
U, Uranium (ppm) 6.37 0.432 6.14 6.60 4-Acid Digestion
V, Vanadium (ppm) 110 3 109 111 4-Acid Digestion
W, Tungsten (ppm) 3.38 0.43 3.16 3.59 4-Acid Digestion
Y, Yttrium (ppm) 26.8 1.89 25.8 27.8 4-Acid Digestion
Yb, Ytterbium (ppm) 2.66 0.152 2.54 2.78 4-Acid Digestion
Zn, Zinc (ppm) 69 2.3 68 71 4-Acid Digestion
Zr, Zirconium (ppm) 89 5.9 86 92 4-Acid Digestion
Ag, Silver (ppm) 0.061 0.005 0.056 0.066 Aqua Regia Digestion (sample weights 0.15-50g)
Al, Aluminium (wt.%) 2.37 0.133 2.30 2.44 Aqua Regia Digestion (sample weights 0.15-50g)
As, Arsenic (ppm) 17.2 1.29 16.5 17.8 Aqua Regia Digestion (sample weights 0.15-50g)
Ba, Barium (ppm) 487 17 477 498 Aqua Regia Digestion (sample weights 0.15-50g)
Be, Beryllium (ppm) 0.65 0.07 0.59 0.70 Aqua Regia Digestion (sample weights 0.15-50g)
Bi, Bismuth (ppm) 0.14 0.02 0.14 0.15 Aqua Regia Digestion (sample weights 0.15-50g)
Ca, Calcium (wt.%) 0.834 0.050 0.806 0.862 Aqua Regia Digestion (sample weights 0.15-50g)
Cd, Cadmium (ppm) 0.036 0.005 0.032 0.040 Aqua Regia Digestion (sample weights 0.15-50g)
Ce, Cerium (ppm) 72 2.8 70 73 Aqua Regia Digestion (sample weights 0.15-50g)
Co, Cobalt (ppm) 12.5 0.64 12.1 12.8 Aqua Regia Digestion (sample weights 0.15-50g)
Cr, Chromium (ppm) 67 3.9 64 69 Aqua Regia Digestion (sample weights 0.15-50g)
Cs, Caesium (ppm) 13.5 0.85 12.9 14.0 Aqua Regia Digestion (sample weights 0.15-50g)
Cu, Copper (ppm) 45.9 2.39 44.6 47.1 Aqua Regia Digestion (sample weights 0.15-50g)
Dy, Dysprosium (ppm) 3.60 0.226 3.31 3.89 Aqua Regia Digestion (sample weights 0.15-50g)
Er, Erbium (ppm) 1.91 0.153 1.72 2.11 Aqua Regia Digestion (sample weights 0.15-50g)
Eu, Europium (ppm) 0.38 0.06 0.31 0.45 Aqua Regia Digestion (sample weights 0.15-50g)
Fe, Iron (wt.%) 3.27 0.172 3.17 3.37 Aqua Regia Digestion (sample weights 0.15-50g)
Ga, Gallium (ppm) 8.77 0.456 8.46 9.08 Aqua Regia Digestion (sample weights 0.15-50g)
Gd, Gadolinium (ppm) 4.42 0.419 3.86 4.99 Aqua Regia Digestion (sample weights 0.15-50g)
Ge, Germanium (ppm) 0.18 0.017 0.16 0.20 Aqua Regia Digestion (sample weights 0.15-50g)
Hf, Hafnium (ppm) 0.46 0.019 0.45 0.47 Aqua Regia Digestion (sample weights 0.15-50g)
Ho, Holmium (ppm) 0.69 0.049 0.63 0.75 Aqua Regia Digestion (sample weights 0.15-50g)
In, Indium (ppm) 0.030 0.003 0.028 0.032 Aqua Regia Digestion (sample weights 0.15-50g)
K, Potassium (wt.%) 1.35 0.069 1.31 1.39 Aqua Regia Digestion (sample weights 0.15-50g)
La, Lanthanum (ppm) 34.8 1.84 33.8 35.8 Aqua Regia Digestion (sample weights 0.15-50g)
Li, Lithium (ppm) 37.7 1.71 37.0 38.4 Aqua Regia Digestion (sample weights 0.15-50g)
Lu, Lutetium (ppm) 0.24 0.03 0.21 0.28 Aqua Regia Digestion (sample weights 0.15-50g)
Mg, Magnesium (wt.%) 1.17 0.092 1.12 1.23 Aqua Regia Digestion (sample weights 0.15-50g)
Mn, Manganese (wt.%) 0.036 0.002 0.035 0.037 Aqua Regia Digestion (sample weights 0.15-50g)
Mo, Molybdenum (ppm) 3.01 0.32 2.83 3.19 Aqua Regia Digestion (sample weights 0.15-50g)
Na, Sodium (wt.%) 0.257 0.013 0.248 0.265 Aqua Regia Digestion (sample weights 0.15-50g)
Nb, Niobium (ppm) 1.15 0.13 1.05 1.24 Aqua Regia Digestion (sample weights 0.15-50g)
Nd, Neodymium (ppm) 30.1 2.21 27.1 33.1 Aqua Regia Digestion (sample weights 0.15-50g)
Ni, Nickel (ppm) 36.3 2.13 35.2 37.4 Aqua Regia Digestion (sample weights 0.15-50g)
P, Phosphorus (wt.%) 0.097 0.004 0.094 0.099 Aqua Regia Digestion (sample weights 0.15-50g)
Pb, Lead (ppm) 5.82 0.463 5.55 6.09 Aqua Regia Digestion (sample weights 0.15-50g)
Rb, Rubidium (ppm) 164 9 158 170 Aqua Regia Digestion (sample weights 0.15-50g)
S, Sulphur (wt.%) 0.070 0.011 0.063 0.077 Aqua Regia Digestion (sample weights 0.15-50g)
Sb, Antimony (ppm) 0.28 0.03 0.25 0.30 Aqua Regia Digestion (sample weights 0.15-50g)
Sc, Scandium (ppm) 7.65 0.77 7.17 8.14 Aqua Regia Digestion (sample weights 0.15-50g)
Sm, Samarium (ppm) 5.21 0.54 4.50 5.91 Aqua Regia Digestion (sample weights 0.15-50g)
Sn, Tin (ppm) 3.37 0.217 3.22 3.51 Aqua Regia Digestion (sample weights 0.15-50g)
Sr, Strontium (ppm) 60 5.3 57 63 Aqua Regia Digestion (sample weights 0.15-50g)
Ta, Tantalum (ppm) 0.009 0.001 0.008 0.010 Aqua Regia Digestion (sample weights 0.15-50g)
Tb, Terbium (ppm) 0.64 0.036 0.61 0.68 Aqua Regia Digestion (sample weights 0.15-50g)
Th, Thorium (ppm) 21.1 1.63 20.2 22.0 Aqua Regia Digestion (sample weights 0.15-50g)
Ti, Titanium (wt.%) 0.366 0.034 0.347 0.386 Aqua Regia Digestion (sample weights 0.15-50g)
Tl, Thallium (ppm) 0.86 0.051 0.82 0.89 Aqua Regia Digestion (sample weights 0.15-50g)
U, Uranium (ppm) 5.91 0.347 5.75 6.07 Aqua Regia Digestion (sample weights 0.15-50g)
V, Vanadium (ppm) 105 5 102 108 Aqua Regia Digestion (sample weights 0.15-50g)
W, Tungsten (ppm) 2.27 0.24 2.10 2.44 Aqua Regia Digestion (sample weights 0.15-50g)
Y, Yttrium (ppm) 19.3 0.72 18.9 19.7 Aqua Regia Digestion (sample weights 0.15-50g)
Yb, Ytterbium (ppm) 1.66 0.20 1.43 1.88 Aqua Regia Digestion (sample weights 0.15-50g)
Zn, Zinc (ppm) 63 4.1 61 65 Aqua Regia Digestion (sample weights 0.15-50g)
Zr, Zirconium (ppm) 10.6 0.49 10.2 11.0 Aqua Regia Digestion (sample weights 0.15-50g)
C, Carbon (wt.%) 0.054 0.010 0.049 0.059 Infrared Combustion
S, Sulphur (wt.%) 0.059 0.005 0.056 0.061 Infrared Combustion
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