Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS 21e has been prepared from quartz sand to which 0.5% iron oxide has been added to produce a light brown coloured pulp. This colouring gives the material an appearance of oxide origin (i.e. light brown clay or light iron ore colour). It is characterised by extremely low background gold of less than 1 part per billion.
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) | 5.68 | 0.81 | 5.25 | 6.11 | 4-Acid Digestion |
Ag, Silver (ppm) | < 0.050 | IND | IND | IND | 4-Acid Digestion |
Al, Aluminium (wt.%) | 0.098 | 0.018 | 0.085 | 0.111 | 4-Acid Digestion |
Ba, Barium (ppm) | 3.90 | 1.04 | 3.24 | 4.57 | 4-Acid Digestion |
Be, Beryllium (ppm) | 0.065 | 0.019 | 0.052 | 0.078 | 4-Acid Digestion |
Bi, Bismuth (ppm) | < 0.020 | IND | IND | IND | 4-Acid Digestion |
Cd, Cadmium (ppm) | < 0.020 | IND | IND | IND | 4-Acid Digestion |
Ce, Cerium (ppm) | 2.19 | 0.163 | 2.09 | 2.29 | 4-Acid Digestion |
Co, Cobalt (ppm) | 0.42 | 0.05 | 0.40 | 0.44 | 4-Acid Digestion |
Cr, Chromium (ppm) | 4.50 | 0.87 | 3.72 | 5.28 | 4-Acid Digestion |
Cs, Caesium (ppm) | 0.10 | 0.01 | 0.09 | 0.11 | 4-Acid Digestion |
Fe, Iron (wt.%) | 0.350 | 0.016 | 0.339 | 0.361 | 4-Acid Digestion |
Ga, Gallium (ppm) | 0.23 | 0.03 | 0.21 | 0.25 | 4-Acid Digestion |
Hf, Hafnium (ppm) | 0.24 | 0.05 | 0.22 | 0.27 | 4-Acid Digestion |
In, Indium (ppm) | < 0.005 | IND | IND | IND | 4-Acid Digestion |
K, Potassium (wt.%) | < 0.010 | IND | IND | IND | 4-Acid Digestion |
La, Lanthanum (ppm) | 1.06 | 0.097 | 1.00 | 1.12 | 4-Acid Digestion |
Li, Lithium (ppm) | 14.8 | 0.58 | 14.4 | 15.2 | 4-Acid Digestion |
Mg, Magnesium (wt.%) | < 0.010 | IND | IND | IND | 4-Acid Digestion |
Mn, Manganese (wt.%) | 0.003 | 0.000 | 0.003 | 0.003 | 4-Acid Digestion |
Mo, Molybdenum (ppm) | 0.69 | 0.050 | 0.67 | 0.72 | 4-Acid Digestion |
Na, Sodium (wt.%) | < 0.005 | IND | IND | IND | 4-Acid Digestion |
Nb, Niobium (ppm) | 0.95 | 0.070 | 0.91 | 0.99 | 4-Acid Digestion |
Nd, Neodymium (ppm) | 0.92 | 0.086 | 0.87 | 0.97 | 4-Acid Digestion |
Ni, Nickel (ppm) | 2.70 | 0.31 | 2.52 | 2.88 | 4-Acid Digestion |
P, Phosphorus (wt.%) | < 0.005 | IND | IND | IND | 4-Acid Digestion |
Pb, Lead (ppm) | < 1.00 | IND | IND | IND | 4-Acid Digestion |
Pr, Praseodymium (ppm) | 0.28 | 0.05 | 0.23 | 0.32 | 4-Acid Digestion |
Rb, Rubidium (ppm) | 0.39 | 0.05 | 0.37 | 0.41 | 4-Acid Digestion |
Re, Rhenium (ppm) | < 0.002 | IND | IND | IND | 4-Acid Digestion |
S, Sulphur (wt.%) | < 0.005 | IND | IND | IND | 4-Acid Digestion |
Sb, Antimony (ppm) | 0.21 | 0.04 | 0.17 | 0.25 | 4-Acid Digestion |
Se, Selenium (ppm) | < 2.00 | IND | IND | IND | 4-Acid Digestion |
Sm, Samarium (ppm) | 0.20 | 0.04 | 0.17 | 0.22 | 4-Acid Digestion |
Sn, Tin (ppm) | 0.54 | 0.054 | 0.52 | 0.57 | 4-Acid Digestion |
Sr, Strontium (ppm) | 0.67 | 0.13 | 0.55 | 0.78 | 4-Acid Digestion |
Ta, Tantalum (ppm) | < 0.10 | IND | IND | IND | 4-Acid Digestion |
Tb, Terbium (ppm) | < 0.050 | IND | IND | IND | 4-Acid Digestion |
Te, Tellurium (ppm) | < 0.050 | IND | IND | IND | 4-Acid Digestion |
Th, Thorium (ppm) | 0.69 | 0.066 | 0.65 | 0.73 | 4-Acid Digestion |
Ti, Titanium (wt.%) | 0.030 | 0.001 | 0.029 | 0.030 | 4-Acid Digestion |
Tl, Thallium (ppm) | < 0.020 | IND | IND | IND | 4-Acid Digestion |
Tm, Thulium (ppm) | < 0.050 | IND | IND | IND | 4-Acid Digestion |
U, Uranium (ppm) | 0.14 | 0.04 | 0.12 | 0.17 | 4-Acid Digestion |
V, Vanadium (ppm) | 2.28 | 0.45 | 2.02 | 2.53 | 4-Acid Digestion |
W, Tungsten (ppm) | 0.20 | 0.05 | 0.17 | 0.22 | 4-Acid Digestion |
Y, Yttrium (ppm) | 0.65 | 0.058 | 0.61 | 0.69 | 4-Acid Digestion |
Yb, Ytterbium (ppm) | 0.078 | 0.024 | 0.055 | 0.101 | 4-Acid Digestion |
Zn, Zinc (ppm) | 2.91 | 0.56 | 2.58 | 3.23 | 4-Acid Digestion |
Zr, Zirconium (ppm) | 7.57 | 0.632 | 7.13 | 8.01 | 4-Acid Digestion |