Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS 26a is a basalt blank chip (nominal minus 6 mm) certified reference material. The material was sourced from a quarry containing fresh olivine tholeiite (Newer Volcanics Province), near Melbourne (Victoria), Australia. It has been certified for:
Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
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Au, Gold (ppb) | < 1 | IND | IND | IND | Pb Fire Assay |
Cu, Copper (ppm) | 50 | 4.6 | 47 | 53 | 4-Acid Digestion |
Pb, Lead (ppm) | 2.73 | 0.35 | 2.48 | 2.98 | 4-Acid Digestion |
Ba, Barium (ppm) | 281 | 14 | 273 | 289 | 4-Acid Digestion |
Cd, Cadmium (ppm) | 0.052 | 0.010 | 0.044 | 0.061 | 4-Acid Digestion |
Co, Cobalt (ppm) | 46.1 | 2.57 | 44.2 | 48.1 | 4-Acid Digestion |
Fe, Iron (wt.%) | 7.76 | 0.419 | 7.37 | 8.15 | 4-Acid Digestion |
Mo, Molybdenum (ppm) | 1.50 | 0.073 | 1.46 | 1.54 | 4-Acid Digestion |
Ni, Nickel (ppm) | 163 | 12 | 155 | 171 | 4-Acid Digestion |
Sn, Tin (ppm) | 1.57 | 0.122 | 1.47 | 1.68 | 4-Acid Digestion |
Th, Thorium (ppm) | 2.75 | 0.112 | 2.69 | 2.81 | 4-Acid Digestion |
U, Uranium (ppm) | 0.72 | 0.049 | 0.69 | 0.74 | 4-Acid Digestion |
W, Tungsten (ppm) | 0.50 | 0.048 | 0.45 | 0.55 | 4-Acid Digestion |
Zn, Zinc (ppm) | 107 | 5 | 103 | 110 | 4-Acid Digestion |
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