OREAS 24c

OREAS 24c was prepared from alkali olivine basalt from the Quaternary Newer
Volcanics Province, Victoria, Australia. It is characterised by very low
background gold of less than 1 parts per billion. Seven commercial
analytical laboratories participated in the program to characterise (in addition
to gold by fire assay) Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Hf,
K, Li, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, Sb, Sc, Sn, Sr, Ta, Th, Ti, U, V, W,
Y, Zn and Zr by 4-acid digestion with ICP-OES or ICP-MS
finish.

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Au, Gold (ppb) 1 IND IND IND Pb Fire Assay
Cu, Copper (ppm) 48.6 1.45 47.3 49.9 4-Acid Digestion
Ni, Nickel (ppm) 138 4 135 140 4-Acid Digestion
Ag, Silver (ppm) 0.200 IND IND IND 4-Acid Digestion
Al, Aluminium (wt.%) 7.45 0.213 7.23 7.66 4-Acid Digestion
As, Arsenic (ppm) 0.20 IND IND IND 4-Acid Digestion
Ba, Barium (ppm) 269 6 264 274 4-Acid Digestion
Be, Beryllium (ppm) 1.05 0.073 0.98 1.12 4-Acid Digestion
Bi, Bismuth (ppm) 0.10 IND IND IND 4-Acid Digestion
Ca, Calcium (wt.%) 5.86 0.126 5.80 5.92 4-Acid Digestion
Cd, Cadmium (ppm) 0.10 IND IND IND 4-Acid Digestion
Co, Cobalt (ppm) 42.7 1.71 41.3 44.1 4-Acid Digestion
Cr, Chromium (ppm) 193 9 183 202 4-Acid Digestion
Fe, Iron (wt.%) 7.62 0.356 7.29 7.95 4-Acid Digestion
Hf, Hafnium (ppm) 3.75 0.244 3.44 4.06 4-Acid Digestion
K, Potassium (wt.%) 0.735 0.041 0.683 0.787 4-Acid Digestion
Li, Lithium (ppm) 8.32 0.89 7.13 9.50 4-Acid Digestion
Mg, Magnesium (wt.%) 3.93 0.101 3.82 4.04 4-Acid Digestion
Mn, Manganese (wt.%) 0.108 0.006 0.101 0.116 4-Acid Digestion
Mo, Molybdenum (ppm) 2.49 0.203 2.31 2.67 4-Acid Digestion
Na, Sodium (wt.%) 2.42 0.141 2.24 2.60 4-Acid Digestion
Nb, Niobium (ppm) 23.8 2.8 20.1 27.5 4-Acid Digestion
P, Phosphorus (wt.%) 0.156 0.006 0.148 0.163 4-Acid Digestion
Pb, Lead (ppm) 2.90 0.245 2.65 3.15 4-Acid Digestion
Rb, Rubidium (ppm) 21.9 0.91 20.8 22.9 4-Acid Digestion
Sb, Antimony (ppm) 0.10 IND IND IND 4-Acid Digestion
Sc, Scandium (ppm) 21.6 1.33 19.9 23.3 4-Acid Digestion
Sn, Tin (ppm) 1.51 0.094 1.44 1.58 4-Acid Digestion
Sr, Strontium (ppm) 442 12 430 453 4-Acid Digestion
Ta, Tantalum (ppm) 1.48 0.23 1.16 1.80 4-Acid Digestion
Th, Thorium (ppm) 3.08 0.177 2.91 3.24 4-Acid Digestion
Ti, Titanium (wt.%) 1.06 0.026 1.04 1.07 4-Acid Digestion
U, Uranium (ppm) 0.76 0.039 0.73 0.79 4-Acid Digestion
V, Vanadium (ppm) 161 7 154 167 4-Acid Digestion
W, Tungsten (ppm) 0.53 0.09 0.44 0.61 4-Acid Digestion
Y, Yttrium (ppm) 22.3 0.52 21.9 22.7 4-Acid Digestion
Zn, Zinc (ppm) 108 14 95 122 4-Acid Digestion
Zr, Zirconium (ppm) 143 10 130 156 4-Acid Digestion
Add to cart
Pricing
  • 10g Sachet
    $2.05
  • 1Kg Jar
    $61.00
Specifications
CRM Group

Downloads

Certificate Datapack SDS NRAM (221 KiB)