AC18.10663

Siltstone

The material consists of siltstone rock sourced from an operating (Donnybrook) quarry located approx. 29 km north of the city of Melbourne, Victoria. This very pale orange (moderately weathered) Upper Silurian, siliclastic sedimentary rock is part of the Melbourne Formation originally deposited in a quiet, relatively deep-water marine (outer shelf) environment. The mineralogy consists of quartz (59 %) and muscovite/sericite (23 %) with minor vermiculite, phlogopite, plagioclase, K-feldspar and tourmaline. The rock is also anomalous in As, Au, Bi, La, Sb, W and Sn.

AC18.10663 is available as 50 g units packed into glass, wide-mouth jars.

Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Al2O3, Aluminium(III) oxide (wt.%) 16.24 0.227 16.05 16.44 Various analytical methods
As, Arsenic (ppm) 501 37 450 553 Various analytical methods
B, Boron (wt.%) 0.152 0.030 0.108 0.196 Various analytical methods
Ba, Barium (ppm) 707 22 683 731 Various analytical methods
Be, Beryllium (ppm) 3.33 0.59 2.70 3.95 Various analytical methods
Bi, Bismuth (ppm) 22.5 1.02 20.9 24.2 Various analytical methods
CaO, Calcium oxide (wt.%) 0.070 0.024 0.055 0.086 Various analytical methods
Cd, Cadmium (ppm) < 10.0 IND IND IND Various analytical methods
Ce, Cerium (ppm) 102 8 93 112 Various analytical methods
Co, Cobalt (ppm) 2.08 0.52 1.45 2.70 Various analytical methods
Cr2O3, Chromium(III) oxide (ppm) 173 34 148 199 Various analytical methods
Cs, Caesium (ppm) 11.8 0.56 10.9 12.7 Various analytical methods
Cu, Copper (ppm) 32.5 10.0 21.6 43.5 Various analytical methods
Dy, Dysprosium (ppm) 5.87 0.386 5.49 6.24 Various analytical methods
Er, Erbium (ppm) 3.40 0.178 2.98 3.81 Various analytical methods
Eu, Europium (ppm) 1.41 0.080 1.30 1.51 Various analytical methods
Fe2O3, Iron(III) oxide (wt.%) 4.13 0.130 4.06 4.20 Various analytical methods
Ga, Gallium (ppm) 21.8 1.36 20.5 23.0 Various analytical methods
Gd, Gadolinium (ppm) 6.44 0.536 5.76 7.11 Various analytical methods
Ge, Germanium (ppm) 2.04 0.168 1.73 2.34 Various analytical methods
Ho, Holmium (ppm) 1.18 0.058 1.03 1.32 Various analytical methods
In, Indium (ppm) < 0.20 IND IND IND Various analytical methods
K2O, Potassium oxide (wt.%) 3.17 0.044 3.12 3.22 Various analytical methods
La, Lanthanum (ppm) 52 2.4 49 55 Various analytical methods
Li, Lithium (ppm) 48.1 3.62 44.9 51.4 Various analytical methods
LOI1000, Loss On Ignition @1000 °C (wt.%) 3.83 0.51 3.44 4.22 Various analytical methods
Lu, Lutetium (ppm) 0.47 0.07 0.37 0.57 Various analytical methods
MgO, Magnesium oxide (wt.%) 0.669 0.029 0.648 0.691 Various analytical methods
MnO, Manganese oxide (wt.%) 0.004 0.001 0.004 0.005 Various analytical methods
Mo, Molybdenum (ppm) < 5.00 IND IND IND Various analytical methods
Na2O, Sodium oxide (wt.%) 0.227 0.044 0.196 0.257 Various analytical methods
Nb, Niobium (ppm) 16.4 1.41 14.6 18.2 Various analytical methods
Nd, Neodymium (ppm) 41.9 4.7 39.2 44.7 Various analytical methods
P2O5, Phosphorus(V) oxide (wt.%) 0.078 0.007 0.072 0.085 Various analytical methods
Pb, Lead (ppm) 22.6 5.0 15.5 29.6 Various analytical methods
Pr, Praseodymium (ppm) 11.6 0.80 10.8 12.4 Various analytical methods
Rb, Rubidium (ppm) 150 12 144 157 Various analytical methods
Sb, Antimony (ppm) 6.19 0.556 5.20 7.18 Various analytical methods
Sc, Scandium (ppm) 15.8 0.44 14.8 16.9 Various analytical methods
SiO2, Silicon dioxide (wt.%) 69.99 0.594 69.40 70.58 Various analytical methods
Sm, Samarium (ppm) 7.43 0.473 6.49 8.36 Various analytical methods
Sn, Tin (ppm) 19.5 1.28 17.6 21.4 Various analytical methods
Sr, Strontium (ppm) 78 2.6 74 82 Various analytical methods
Ta, Tantalum (ppm) 1.35 0.29 0.95 1.74 Various analytical methods
Tb, Terbium (ppm) 0.96 0.067 0.86 1.06 Various analytical methods
Te, Tellurium (ppm) < 1.00 IND IND IND Various analytical methods
Th, Thorium (ppm) 18.4 1.12 17.6 19.1 Various analytical methods
TiO2, Titanium dioxide (wt.%) 0.822 0.011 0.807 0.836 Various analytical methods
Tl, Thallium (ppm) 0.83 0.049 0.75 0.91 Various analytical methods
Tm, Thulium (ppm) 0.51 0.038 0.46 0.55 Various analytical methods
U, Uranium (ppm) 3.44 0.43 3.21 3.67 Various analytical methods
V, Vanadium (ppm) 114 12 106 121 Various analytical methods
W, Tungsten (ppm) 93 12 82 105 Various analytical methods
Y, Yttrium (ppm) 31.4 1.67 29.9 33.0 Various analytical methods
Yb, Ytterbium (ppm) 3.23 0.255 3.01 3.45 Various analytical methods
Zn, Zinc (ppm) 41.7 7.4 30.4 53.0 Various analytical methods
Zr, Zirconium (ppm) 238 28 204 272 Various analytical methods
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