Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS C27c is a rhyodacite blank chip certified reference material (CRM). In addition to the 500g and 1kg pack sizes (see list under ‘Add to cart’), 200kg drums are available upon request for AUD$3140 (please contact sales@ore.com.au).
The material was sourced from a quarry containing fresh rhyodacite near Melbourne (Victoria), Australia. OREAS C27c contains 52 certified values by full ICP-OES/MS suite by 4-acid digestion and Au by fire assay. Indicative values for 12 additional elements are also available. Tabulated round robin laboratory results of all elements together with analytical method codes, uncorrected means, medians, standard deviations, relative standard deviations and per cent deviation of lab means from the corrected mean of means (PDM3) are presented in the detailed certification data for this CRM (OREAS C27c DataPack.xlsx).
Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
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Au, Gold (ppb) | < 2 | IND | IND | IND | Pb Fire Assay |
Cu, Copper (ppm) | 7.49 | 1.66 | 6.47 | 8.52 | 4-Acid Digestion |
Pb, Lead (ppm) | 27.9 | 2.24 | 26.6 | 29.3 | 4-Acid Digestion |
Al, Aluminium (wt.%) | 7.51 | 0.202 | 7.42 | 7.60 | 4-Acid Digestion |
Ba, Barium (ppm) | 3001 | 148 | 2896 | 3105 | 4-Acid Digestion |
Be, Beryllium (ppm) | 3.26 | 0.124 | 3.19 | 3.33 | 4-Acid Digestion |
Bi, Bismuth (ppm) | 0.10 | 0.01 | 0.10 | 0.11 | 4-Acid Digestion |
Ca, Calcium (wt.%) | 1.31 | 0.042 | 1.28 | 1.33 | 4-Acid Digestion |
Cd, Cadmium (ppm) | 0.40 | 0.030 | 0.38 | 0.42 | 4-Acid Digestion |
Ce, Cerium (ppm) | 92 | 6.4 | 88 | 96 | 4-Acid Digestion |
Co, Cobalt (ppm) | 2.74 | 0.39 | 2.63 | 2.85 | 4-Acid Digestion |
Cs, Caesium (ppm) | 7.45 | 0.349 | 7.24 | 7.67 | 4-Acid Digestion |
Dy, Dysprosium (ppm) | 3.64 | 0.259 | 3.38 | 3.89 | 4-Acid Digestion |
Er, Erbium (ppm) | 0.98 | 0.077 | 0.90 | 1.06 | 4-Acid Digestion |
Eu, Europium (ppm) | 1.48 | 0.26 | 1.20 | 1.75 | 4-Acid Digestion |
Fe, Iron (wt.%) | 2.61 | 0.170 | 2.53 | 2.70 | 4-Acid Digestion |
Ga, Gallium (ppm) | 23.1 | 0.83 | 22.5 | 23.7 | 4-Acid Digestion |
Gd, Gadolinium (ppm) | 6.33 | 0.511 | 5.86 | 6.80 | 4-Acid Digestion |
Hf, Hafnium (ppm) | 5.70 | 0.331 | 5.48 | 5.93 | 4-Acid Digestion |
In, Indium (ppm) | 0.062 | 0.003 | 0.061 | 0.064 | 4-Acid Digestion |
K, Potassium (wt.%) | 3.12 | 0.153 | 3.03 | 3.21 | 4-Acid Digestion |
La, Lanthanum (ppm) | 45.4 | 3.73 | 43.0 | 47.9 | 4-Acid Digestion |
Li, Lithium (ppm) | 37.6 | 2.75 | 35.6 | 39.6 | 4-Acid Digestion |
Lu, Lutetium (ppm) | 0.068 | 0.010 | 0.056 | 0.080 | 4-Acid Digestion |
Mg, Magnesium (wt.%) | 0.160 | 0.014 | 0.153 | 0.167 | 4-Acid Digestion |
Mn, Manganese (wt.%) | 0.033 | 0.002 | 0.032 | 0.034 | 4-Acid Digestion |
Mo, Molybdenum (ppm) | 3.64 | 0.46 | 3.39 | 3.89 | 4-Acid Digestion |
Na, Sodium (wt.%) | 2.59 | 0.105 | 2.52 | 2.65 | 4-Acid Digestion |
Nb, Niobium (ppm) | 19.7 | 1.13 | 19.0 | 20.4 | 4-Acid Digestion |
Nd, Neodymium (ppm) | 40.6 | 2.14 | 38.5 | 42.7 | 4-Acid Digestion |
Ni, Nickel (ppm) | 4.62 | 0.89 | 4.19 | 5.05 | 4-Acid Digestion |
P, Phosphorus (wt.%) | 0.036 | 0.003 | 0.034 | 0.038 | 4-Acid Digestion |
Pr, Praseodymium (ppm) | 11.2 | 0.44 | 10.6 | 11.7 | 4-Acid Digestion |
Rb, Rubidium (ppm) | 150 | 6 | 146 | 153 | 4-Acid Digestion |
S, Sulphur (wt.%) | 0.009 | 0.002 | 0.008 | 0.010 | 4-Acid Digestion |
Sb, Antimony (ppm) | 1.22 | 0.13 | 1.14 | 1.30 | 4-Acid Digestion |
Sc, Scandium (ppm) | 4.21 | 0.325 | 4.04 | 4.39 | 4-Acid Digestion |
Sm, Samarium (ppm) | 7.81 | 0.231 | 7.59 | 8.04 | 4-Acid Digestion |
Sn, Tin (ppm) | 3.98 | 0.145 | 3.88 | 4.08 | 4-Acid Digestion |
Sr, Strontium (ppm) | 186 | 8 | 181 | 191 | 4-Acid Digestion |
Ta, Tantalum (ppm) | 1.46 | 0.050 | 1.42 | 1.51 | 4-Acid Digestion |
Tb, Terbium (ppm) | 0.82 | 0.044 | 0.78 | 0.86 | 4-Acid Digestion |
Th, Thorium (ppm) | 15.3 | 1.01 | 14.7 | 15.9 | 4-Acid Digestion |
Ti, Titanium (wt.%) | 0.121 | 0.006 | 0.117 | 0.125 | 4-Acid Digestion |
Tl, Thallium (ppm) | 0.87 | 0.060 | 0.83 | 0.91 | 4-Acid Digestion |
U, Uranium (ppm) | 5.94 | 0.378 | 5.71 | 6.17 | 4-Acid Digestion |
V, Vanadium (ppm) | 5.19 | 1.09 | 4.62 | 5.76 | 4-Acid Digestion |
W, Tungsten (ppm) | 2.08 | 0.206 | 1.96 | 2.19 | 4-Acid Digestion |
Y, Yttrium (ppm) | 15.0 | 0.93 | 14.4 | 15.5 | 4-Acid Digestion |
Yb, Ytterbium (ppm) | 0.54 | 0.040 | 0.51 | 0.58 | 4-Acid Digestion |
Zn, Zinc (ppm) | 118 | 3 | 116 | 120 | 4-Acid Digestion |
Zr, Zirconium (ppm) | 211 | 18 | 197 | 225 | 4-Acid Digestion |
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