AC18.10660

The material consists of flagstone rock sourced from an operating (Mintaro) quarry located approx. 110km north of the city of Adelaide in South Australia. This Proterozoic (~800 Ma) siliclastic sedimentary rock is part of the Mintaro Shale Formation originally deposited in a quiet, relatively deep-water marine (outer shelf) environment. The mineralogy consists of quartz (35 %), biotite (16 %), dolomite (12 %), muscovite-sericite (12 %) and plagioclase (10 %) with minor amounts of chlorite, kaolinite, and calcite.
Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Al2O3, Aluminium(III) oxide (wt.%) 11.37 0.221 11.20 11.53 Miscellaneous Assay Methods
As, Arsenic (ppm) 20.3 1.03 18.4 22.2 Miscellaneous Assay Methods
B, Boron (ppm) 184 35 133 235 Miscellaneous Assay Methods
Ba, Barium (ppm) 345 15 330 361 Miscellaneous Assay Methods
Be, Beryllium (ppm) 2.09 0.39 1.64 2.54 Miscellaneous Assay Methods
Bi, Bismuth (ppm) 1.02 0.15 0.79 1.25 Miscellaneous Assay Methods
CaO, Calcium oxide (wt.%) 6.13 0.136 6.04 6.22 Miscellaneous Assay Methods
Cd, Cadmium (ppm) < 10.0 IND IND IND Miscellaneous Assay Methods
Ce, Cerium (ppm) 62 3.7 59 66 Miscellaneous Assay Methods
Co, Cobalt (ppm) 13.4 0.75 12.0 14.9 Miscellaneous Assay Methods
Cr2O3, Chromium(III) oxide (ppm) 95 11 80 109 Miscellaneous Assay Methods
Cs, Caesium (ppm) 6.94 0.491 6.23 7.66 Miscellaneous Assay Methods
Cu, Copper (ppm) 29.1 5.5 20.5 37.8 Miscellaneous Assay Methods
Dy, Dysprosium (ppm) 4.96 0.275 4.43 5.49 Miscellaneous Assay Methods
Er, Erbium (ppm) 2.83 0.145 2.55 3.12 Miscellaneous Assay Methods
Eu, Europium (ppm) 1.16 0.14 1.02 1.30 Miscellaneous Assay Methods
Fe2O3, Iron(III) oxide (wt.%) 5.48 0.117 5.41 5.55 Miscellaneous Assay Methods
Ga, Gallium (ppm) 15.8 1.20 14.2 17.3 Miscellaneous Assay Methods
Gd, Gadolinium (ppm) 5.57 0.131 5.26 5.89 Miscellaneous Assay Methods
Ge, Germanium (ppm) 1.80 0.27 1.51 2.09 Miscellaneous Assay Methods
Ho, Holmium (ppm) 0.95 0.057 0.83 1.08 Miscellaneous Assay Methods
In, Indium (ppm) < 0.20 IND IND IND Miscellaneous Assay Methods
K2O, Potassium oxide (wt.%) 2.85 0.059 2.82 2.88 Miscellaneous Assay Methods
La, Lanthanum (ppm) 32.5 1.44 30.2 34.8 Miscellaneous Assay Methods
Li, Lithium (ppm) 58 2.0 56 61 Miscellaneous Assay Methods
LOI1000, Loss On Ignition @1000 °C (wt.%) 10.54 0.330 10.23 10.85 Miscellaneous Assay Methods
Lu, Lutetium (ppm) 0.37 0.07 0.28 0.46 Miscellaneous Assay Methods
MgO, Magnesium oxide (wt.%) 5.94 0.134 5.84 6.04 Miscellaneous Assay Methods
MnO, Manganese oxide (wt.%) 0.093 0.004 0.090 0.096 Miscellaneous Assay Methods
Mo, Molybdenum (ppm) < 1.00 IND IND IND Miscellaneous Assay Methods
Na2O, Sodium oxide (wt.%) 1.32 0.038 1.28 1.36 Miscellaneous Assay Methods
Nb, Niobium (ppm) 10.8 1.6 9.1 12.5 Miscellaneous Assay Methods
Nd, Neodymium (ppm) 29.3 3.9 27.3 31.4 Miscellaneous Assay Methods
Ni, Nickel (ppm) 23.9 6.5 12.6 35.1 Miscellaneous Assay Methods
P2O5, Phosphorus(V) oxide (wt.%) 0.200 0.011 0.189 0.210 Miscellaneous Assay Methods
Pr, Praseodymium (ppm) 7.65 0.524 6.90 8.39 Miscellaneous Assay Methods
Rb, Rubidium (ppm) 130 7 123 136 Miscellaneous Assay Methods
S, Sulphur (wt.%) 0.041 0.007 0.030 0.051 Miscellaneous Assay Methods
Sb, Antimony (ppm) < 2.00 IND IND IND Miscellaneous Assay Methods
Sc, Scandium (ppm) 11.6 0.57 10.9 12.3 Miscellaneous Assay Methods
SiO2, Silicon dioxide (wt.%) 55.46 0.992 54.77 56.15 Miscellaneous Assay Methods
Sm, Samarium (ppm) 5.94 0.498 5.09 6.78 Miscellaneous Assay Methods
Sn, Tin (ppm) 3.88 0.64 2.61 5.16 Miscellaneous Assay Methods
Sr, Strontium (ppm) 122 13 115 129 Miscellaneous Assay Methods
Ta, Tantalum (ppm) < 5.00 IND IND IND Miscellaneous Assay Methods
Tb, Terbium (ppm) 0.81 0.074 0.70 0.91 Miscellaneous Assay Methods
Te, Tellurium (ppm) < 1.00 IND IND IND Miscellaneous Assay Methods
Th, Thorium (ppm) 13.4 1.13 12.5 14.4 Miscellaneous Assay Methods
TiO2, Titanium dioxide (wt.%) 0.829 0.028 0.807 0.851 Miscellaneous Assay Methods
Tl, Thallium (ppm) 0.51 0.09 0.31 0.72 Miscellaneous Assay Methods
Tm, Thulium (ppm) 0.41 0.022 0.37 0.44 Miscellaneous Assay Methods
U, Uranium (ppm) 2.41 0.54 2.14 2.69 Miscellaneous Assay Methods
V, Vanadium (ppm) 89 11 82 96 Miscellaneous Assay Methods
W, Tungsten (ppm) < 20.0 IND IND IND Miscellaneous Assay Methods
Y, Yttrium (ppm) 26.7 1.37 25.2 28.2 Miscellaneous Assay Methods
Yb, Ytterbium (ppm) 2.64 0.223 2.27 3.01 Miscellaneous Assay Methods
Zn, Zinc (ppm) 77 3.5 71 83 Miscellaneous Assay Methods
Zr, Zirconium (ppm) 197 20 172 222 Miscellaneous Assay Methods
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