| Description: OREAS 22h has been prepared from quartz sand to which 0.5% iron oxide has been added to produce a pale grey pulp. This colouring gives the material an appearance of primary origin (i.e. non-oxide). It is characterised by extremely low background gold of less than 1 part per billion.
Download Certificate OREAS22h Download DataPack OREAS22h | Analyte | Certified Value | 1SD | 95% CI Low | 95% CI High | Method |
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| Ag, Silver (ppm) | 0.05 | IND | IND | IND | 4-Acid Digestion | | Al, Aluminium (wt.%) | 0.101 | 0.008 | 0.094 | 0.107 | 4-Acid Digestion | | Ba, Barium (ppm) | 5.24 | 0.69 | 4.73 | 5.74 | 4-Acid Digestion | | Be, Beryllium (ppm) | 0.1 | IND | IND | IND | 4-Acid Digestion | | Ca, Calcium (wt.%) | 0.009 | 0.001 | 0.008 | 0.011 | 4-Acid Digestion | | Ce, Cerium (ppm) | 2.11 | 0.32 | 1.94 | 2.28 | 4-Acid Digestion | | Co, Cobalt (ppm) | 0.53 | 0.06 | 0.51 | 0.56 | 4-Acid Digestion | | Cs, Caesium (ppm) | 0.09 | 0.007 | 0.086 | 0.094 | 4-Acid Digestion | | Cu, Copper (ppm) | 6.2 | 0.364 | 5.9 | 6.5 | 4-Acid Digestion | | Fe, Iron (wt.%) | 0.357 | 0.03 | 0.335 | 0.378 | 4-Acid Digestion | | Ga, Gallium (ppm) | 0.23 | 0.04 | 0.2 | 0.27 | 4-Acid Digestion | | Hf, Hafnium (ppm) | 0.21 | 0.04 | 0.19 | 0.23 | 4-Acid Digestion | | K, Potassium (wt.%) | 0.01 | IND | IND | IND | 4-Acid Digestion | | La, Lanthanum (ppm) | 1.02 | 0.14 | 0.93 | 1.1 | 4-Acid Digestion | | Li, Lithium (ppm) | 14.9 | 0.91 | 14.3 | 15.5 | 4-Acid Digestion | | Mg, Magnesium (wt.%) | 0.01 | IND | IND | IND | 4-Acid Digestion | | Mn, Manganese (wt.%) | 0.007 | 0 | 0.006 | 0.007 | 4-Acid Digestion | | Mo, Molybdenum (ppm) | 0.6 | 0.1 | 0.56 | 0.65 | 4-Acid Digestion | | Na, Sodium (wt.%) | 0.01 | IND | IND | IND | 4-Acid Digestion | | Nb, Niobium (ppm) | 0.68 | 0.09 | 0.66 | 0.71 | 4-Acid Digestion | | Ni, Nickel (ppm) | 4.66 | 0.68 | 4.46 | 4.85 | 4-Acid Digestion | | P, Phosphorus (wt.%) | 0.005 | IND | IND | IND | 4-Acid Digestion | | Pb, Lead (ppm) | 0.83 | 0.17 | 0.74 | 0.92 | 4-Acid Digestion | | Rb, Rubidium (ppm) | 0.37 | 0.05 | 0.33 | 0.4 | 4-Acid Digestion | | Re, Rhenium (ppm) | 0.002 | IND | IND | IND | 4-Acid Digestion | | S, Sulphur (wt.%) | 0.01 | IND | IND | IND | 4-Acid Digestion | | Sb, Antimony (ppm) | 0.16 | 0.02 | 0.16 | 0.17 | 4-Acid Digestion | | Sc, Scandium (ppm) | 0.1 | 0.03 | 0.09 | 0.12 | 4-Acid Digestion | | Sn, Tin (ppm) | 0.41 | 0.08 | 0.35 | 0.47 | 4-Acid Digestion | | Sr, Strontium (ppm) | 0.75 | 0.12 | 0.71 | 0.8 | 4-Acid Digestion | | Th, Thorium (ppm) | 0.62 | 0.054 | 0.59 | 0.65 | 4-Acid Digestion | | Ti, Titanium (wt.%) | 0.024 | 0.004 | 0.024 | 0.025 | 4-Acid Digestion | | Tl, Thallium (ppm) | 0.02 | IND | IND | IND | 4-Acid Digestion | | U, Uranium (ppm) | 0.12 | 0.03 | 0.11 | 0.14 | 4-Acid Digestion | | W, Tungsten (ppm) | 0.17 | 0.04 | 0.15 | 0.19 | 4-Acid Digestion | | Y, Yttrium (ppm) | 0.61 | 0.051 | 0.59 | 0.64 | 4-Acid Digestion | | Zn, Zinc (ppm) | 2.69 | 0.68 | 2.22 | 3.16 | 4-Acid Digestion | | Zr, Zirconium (ppm) | 7.07 | 1.35 | 6.16 | 7.98 | 4-Acid Digestion | | Au, Gold (ppb) | 1 | IND | IND | IND | Pb Fire Assay |
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