primary
sulphide
skarn
OREAS 144
SKU: 144
OREAS 144 is a certified reference material (CRM) produced from a blend of
tin-copper sulphide ores, hornfels, granodiorite, and calcium carbonate. The
ores were sourced from the Renison Bell tin deposit in western Tasmania,
Australia. Mineralisation is structurally controlled, with cassiterite hosted in
silica- and tourmaline-altered veins within carbonate-rich metasedimentary rocks
of the Mount Read Volcanics. The deposit is genetically linked to Devonian
granite intrusions. Cassiterite (SnO₂) is the dominant tin-bearing mineral,
accompanied by sulphide phases such as pyrrhotite, arsenopyrite, chalcopyrite,
and stannite.
Eighteen commercial analytical laboratories participated in the program to
certify the elements reported below using the following methods:
Lithium borate fusion whole rock analysis package by X-ray fluorescence
Thermogravimetry: Loss on Ignition (LOI) at 1000 °C
Lithium borate or sodium peroxide fusion with full suite ICP-OES and
ICP-MS elemental packages
4-acid (HNO3-HF-HClO4-HCl) digestion with full suite ICP-OES and ICP-MS
elemental packages
Homogeneity was evaluated using 12 subsamples analysed by oxidising fusion
with X-ray fluorescence finish. ANOVA was applied to duplicates from six test
units to compare within- and between-unit variances, providing a statistical
measure of batch homogeneity.
Specifications
- State: primary
- Matrix: sulphide
- Mineralisation: skarn
- CRM Group: Sn ore
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Sn, Tin (wt.%) | 0.607 | 0.014 | 0.586 | 0.628 | Borate Fusion XRF |
| Sn, Tin (wt.%) | 0.570 | 0.043 | 0.540 | 0.601 | Borate / Peroxide Fusion ICP |
| Cu, Copper (ppm) | 769 | 20 | 748 | 789 | 4-Acid Digestion |
| Al2O3, Aluminium(III) oxide (wt.%) | 11.13 | 0.160 | 10.97 | 11.28 | Borate Fusion XRF |
| As, Arsenic (wt.%) | 0.254 | 0.023 | 0.233 | 0.275 | Borate Fusion XRF |
| BaO, Barium oxide (ppm) | 584 | 39 | 517 | 652 | Borate Fusion XRF |
| CaO, Calcium oxide (wt.%) | 10.89 | 0.127 | 10.74 | 11.05 | Borate Fusion XRF |
| Co, Cobalt (ppm) | < 100 | IND | IND | IND | Borate Fusion XRF |
| Cu, Copper (ppm) | 745 | 28 | 697 | 792 | Borate Fusion XRF |
| Fe2O3, Iron(III) oxide (wt.%) | 9.63 | 0.159 | 9.49 | 9.77 | Borate Fusion XRF |
| HfO2, Hafnium dioxide (ppm) | < 100 | IND | IND | IND | Borate Fusion XRF |
| K2O, Potassium oxide (wt.%) | 2.33 | 0.030 | 2.29 | 2.37 | Borate Fusion XRF |
| MgO, Magnesium oxide (wt.%) | 2.09 | 0.036 | 2.05 | 2.12 | Borate Fusion XRF |
| MnO, Manganese oxide (wt.%) | 0.064 | 0.004 | 0.061 | 0.067 | Borate Fusion XRF |
| Mo, Molybdenum (ppm) | < 50 | IND | IND | IND | Borate Fusion XRF |
| Na2O, Sodium oxide (wt.%) | 1.07 | 0.11 | 0.96 | 1.18 | Borate Fusion XRF |
| P2O5, Phosphorus(V) oxide (wt.%) | 0.117 | 0.007 | 0.108 | 0.126 | Borate Fusion XRF |
| SiO2, Silicon dioxide (wt.%) | 49.93 | 0.766 | 49.28 | 50.58 | Borate Fusion XRF |
| SO3, Sulphur trioxide (wt.%) | 6.67 | 0.147 | 6.49 | 6.85 | Borate Fusion XRF |
| SrO, Strontium oxide (ppm) | 125 | 28 | 102 | 147 | Borate Fusion XRF |
| TiO2, Titanium dioxide (wt.%) | 0.512 | 0.014 | 0.498 | 0.527 | Borate Fusion XRF |
| V2O5, Vanadium(V) oxide (ppm) | 127 | 25 | 79 | 175 | Borate Fusion XRF |
| Zn, Zinc (ppm) | 80 | 22 | 59 | 101 | Borate Fusion XRF |
| LOI1000, Loss on ignition @1000 °C (wt.%) | 6.48 | 1.06 | 5.82 | 7.13 | Thermogravimetry |
| Al, Aluminium (wt.%) | 5.88 | 0.156 | 5.72 | 6.03 | Borate / Peroxide Fusion ICP |
| As, Arsenic (wt.%) | 0.251 | 0.016 | 0.237 | 0.265 | Borate / Peroxide Fusion ICP |
| Ba, Barium (ppm) | 528 | 16 | 505 | 551 | Borate / Peroxide Fusion ICP |
| Be, Beryllium (ppm) | 3.31 | 0.85 | 2.14 | 4.48 | Borate / Peroxide Fusion ICP |
| Ca, Calcium (wt.%) | 7.83 | 0.270 | 7.44 | 8.21 | Borate / Peroxide Fusion ICP |
| Ce, Cerium (ppm) | 57 | 5.3 | 50 | 64 | Borate / Peroxide Fusion ICP |
| Co, Cobalt (ppm) | 14.5 | 0.57 | 13.3 | 15.6 | Borate / Peroxide Fusion ICP |
| Cr, Chromium (ppm) | 69 | 8 | 55 | 83 | Borate / Peroxide Fusion ICP |
| Cs, Caesium (ppm) | 7.53 | 0.637 | 6.62 | 8.44 | Borate / Peroxide Fusion ICP |
| Cu, Copper (ppm) | 771 | 22 | 742 | 800 | Borate / Peroxide Fusion ICP |
| Dy, Dysprosium (ppm) | 4.54 | 0.352 | 3.86 | 5.22 | Borate / Peroxide Fusion ICP |
| Er, Erbium (ppm) | 2.62 | 0.30 | 2.14 | 3.10 | Borate / Peroxide Fusion ICP |
| Eu, Europium (ppm) | 1.10 | 0.077 | 0.93 | 1.26 | Borate / Peroxide Fusion ICP |
| Fe, Iron (wt.%) | 6.78 | 0.157 | 6.57 | 6.98 | Borate / Peroxide Fusion ICP |
| Ga, Gallium (ppm) | 18.6 | 0.52 | 17.5 | 19.6 | Borate / Peroxide Fusion ICP |
| Gd, Gadolinium (ppm) | 4.89 | 0.57 | 4.02 | 5.77 | Borate / Peroxide Fusion ICP |
| Ho, Holmium (ppm) | 0.91 | 0.11 | 0.73 | 1.10 | Borate / Peroxide Fusion ICP |
| K, Potassium (wt.%) | 1.99 | 0.039 | 1.91 | 2.07 | Borate / Peroxide Fusion ICP |
| La, Lanthanum (ppm) | 27.7 | 2.9 | 24.1 | 31.3 | Borate / Peroxide Fusion ICP |
| Li, Lithium (ppm) | 66 | 11 | 54 | 77 | Borate / Peroxide Fusion ICP |
| Mg, Magnesium (wt.%) | 1.23 | 0.028 | 1.19 | 1.27 | Borate / Peroxide Fusion ICP |
| Mn, Manganese (wt.%) | 0.053 | 0.002 | 0.051 | 0.055 | Borate / Peroxide Fusion ICP |
| Nd, Neodymium (ppm) | 27.5 | 1.77 | 25.0 | 30.0 | Borate / Peroxide Fusion ICP |
| Ni, Nickel (ppm) | 31.0 | 6.1 | 19.8 | 42.3 | Borate / Peroxide Fusion ICP |
| P, Phosphorus (wt.%) | 0.051 | 0.002 | 0.049 | 0.053 | Borate / Peroxide Fusion ICP |
| Pr, Praseodymium (ppm) | 6.88 | 0.82 | 5.70 | 8.05 | Borate / Peroxide Fusion ICP |
| Rb, Rubidium (ppm) | 127 | 8 | 112 | 143 | Borate / Peroxide Fusion ICP |
| S, Sulphur (wt.%) | 2.62 | 0.037 | 2.55 | 2.68 | Borate / Peroxide Fusion ICP |
| Si, Silicon (wt.%) | 23.65 | 0.811 | 22.78 | 24.52 | Borate / Peroxide Fusion ICP |
| Sm, Samarium (ppm) | 5.23 | 0.57 | 4.40 | 6.06 | Borate / Peroxide Fusion ICP |
| Sr, Strontium (ppm) | 125 | 6 | 117 | 133 | Borate / Peroxide Fusion ICP |
| Ta, Tantalum (ppm) | 0.98 | 0.12 | 0.74 | 1.22 | Borate / Peroxide Fusion ICP |
| Tb, Terbium (ppm) | 0.77 | 0.08 | 0.66 | 0.88 | Borate / Peroxide Fusion ICP |
| Th, Thorium (ppm) | 11.4 | 0.66 | 10.3 | 12.4 | Borate / Peroxide Fusion ICP |
| Ti, Titanium (wt.%) | 0.302 | 0.007 | 0.293 | 0.311 | Borate / Peroxide Fusion ICP |
| Tm, Thulium (ppm) | 0.37 | 0.05 | 0.27 | 0.46 | Borate / Peroxide Fusion ICP |
| U, Uranium (ppm) | 2.76 | 0.36 | 2.37 | 3.15 | Borate / Peroxide Fusion ICP |
| V, Vanadium (ppm) | 62 | 10 | 48 | 76 | Borate / Peroxide Fusion ICP |
| Y, Yttrium (ppm) | 23.7 | 3.0 | 20.3 | 27.0 | Borate / Peroxide Fusion ICP |
| Yb, Ytterbium (ppm) | 2.43 | 0.29 | 1.95 | 2.90 | Borate / Peroxide Fusion ICP |
| Zn, Zinc (ppm) | 81 | 20 | 65 | 97 | Borate / Peroxide Fusion ICP |
| Ag, Silver (ppm) | 0.838 | 0.030 | 0.777 | 0.898 | 4-Acid Digestion |
| Al, Aluminium (wt.%) | 5.72 | 0.200 | 5.52 | 5.91 | 4-Acid Digestion |
| As, Arsenic (wt.%) | 0.255 | 0.008 | 0.248 | 0.263 | 4-Acid Digestion |
| Ba, Barium (ppm) | 534 | 14 | 519 | 549 | 4-Acid Digestion |
| Be, Beryllium (ppm) | 3.13 | 0.107 | 2.99 | 3.28 | 4-Acid Digestion |
| Bi, Bismuth (ppm) | 45.3 | 2.27 | 42.8 | 47.9 | 4-Acid Digestion |
| Ca, Calcium (wt.%) | 7.64 | 0.322 | 7.35 | 7.92 | 4-Acid Digestion |
| Ce, Cerium (ppm) | 59 | 2.9 | 55 | 63 | 4-Acid Digestion |
| Co, Cobalt (ppm) | 13.5 | 0.85 | 12.4 | 14.6 | 4-Acid Digestion |
| Cr, Chromium (ppm) | 55 | 6 | 50 | 61 | 4-Acid Digestion |
| Cs, Caesium (ppm) | 7.80 | 0.449 | 7.31 | 8.28 | 4-Acid Digestion |
| Dy, Dysprosium (ppm) | 2.84 | 0.29 | 2.52 | 3.15 | 4-Acid Digestion |
| Er, Erbium (ppm) | 1.35 | 0.21 | 1.14 | 1.56 | 4-Acid Digestion |
| Eu, Europium (ppm) | 1.00 | 0.061 | 0.91 | 1.09 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 6.67 | 0.111 | 6.50 | 6.85 | 4-Acid Digestion |
| Ga, Gallium (ppm) | 18.3 | 1.03 | 17.2 | 19.4 | 4-Acid Digestion |
| Gd, Gadolinium (ppm) | 4.11 | 0.42 | 3.62 | 4.60 | 4-Acid Digestion |
| Hf, Hafnium (ppm) | 2.44 | 0.234 | 2.23 | 2.65 | 4-Acid Digestion |
| Ho, Holmium (ppm) | 0.50 | 0.07 | 0.43 | 0.58 | 4-Acid Digestion |
| In, Indium (ppm) | 2.00 | 0.28 | 1.66 | 2.34 | 4-Acid Digestion |
| K, Potassium (wt.%) | 1.94 | 0.059 | 1.89 | 2.00 | 4-Acid Digestion |
| La, Lanthanum (ppm) | 29.1 | 1.75 | 27.1 | 31.1 | 4-Acid Digestion |
| Li, Lithium (ppm) | 71 | 4.2 | 67 | 74 | 4-Acid Digestion |
| Lu, Lutetium (ppm) | 0.18 | 0.017 | 0.16 | 0.21 | 4-Acid Digestion |
| Mg, Magnesium (wt.%) | 1.16 | 0.036 | 1.12 | 1.19 | 4-Acid Digestion |
| Mn, Manganese (wt.%) | 0.050 | 0.002 | 0.048 | 0.052 | 4-Acid Digestion |
| Mo, Molybdenum (ppm) | 2.08 | 0.147 | 1.89 | 2.27 | 4-Acid Digestion |
| Na, Sodium (wt.%) | 0.836 | 0.028 | 0.805 | 0.867 | 4-Acid Digestion |
| Nb, Niobium (ppm) | 10.2 | 1.3 | 9.2 | 11.3 | 4-Acid Digestion |
| Nd, Neodymium (ppm) | 25.5 | 2.29 | 22.5 | 28.4 | 4-Acid Digestion |
| Ni, Nickel (ppm) | 28.1 | 1.90 | 26.3 | 29.9 | 4-Acid Digestion |
| P, Phosphorus (wt.%) | 0.052 | 0.001 | 0.050 | 0.055 | 4-Acid Digestion |
| Pb, Lead (ppm) | 20.6 | 1.79 | 19.3 | 21.9 | 4-Acid Digestion |
| Pr, Praseodymium (ppm) | 7.20 | 0.483 | 6.64 | 7.76 | 4-Acid Digestion |
| Rb, Rubidium (ppm) | 126 | 7 | 118 | 135 | 4-Acid Digestion |
| S, Sulphur (wt.%) | 2.62 | 0.049 | 2.55 | 2.68 | 4-Acid Digestion |
| Sb, Antimony (ppm) | 2.50 | 0.32 | 2.17 | 2.82 | 4-Acid Digestion |
| Sc, Scandium (ppm) | 9.13 | 0.604 | 8.57 | 9.70 | 4-Acid Digestion |
| Sm, Samarium (ppm) | 5.06 | 0.316 | 4.55 | 5.56 | 4-Acid Digestion |
| Sr, Strontium (ppm) | 124 | 5 | 119 | 130 | 4-Acid Digestion |
| Ta, Tantalum (ppm) | 0.84 | 0.13 | 0.74 | 0.93 | 4-Acid Digestion |
| Tb, Terbium (ppm) | 0.54 | 0.045 | 0.49 | 0.59 | 4-Acid Digestion |
| Th, Thorium (ppm) | 11.3 | 0.40 | 10.6 | 11.9 | 4-Acid Digestion |
| Ti, Titanium (wt.%) | 0.279 | 0.017 | 0.268 | 0.291 | 4-Acid Digestion |
| Tl, Thallium (ppm) | 0.67 | 0.029 | 0.64 | 0.71 | 4-Acid Digestion |
| Tm, Thulium (ppm) | 0.17 | 0.03 | 0.14 | 0.20 | 4-Acid Digestion |
| U, Uranium (ppm) | 2.55 | 0.228 | 2.24 | 2.86 | 4-Acid Digestion |
| V, Vanadium (ppm) | 63 | 2.4 | 61 | 65 | 4-Acid Digestion |
| W, Tungsten (ppm) | 35.6 | 1.83 | 33.1 | 38.1 | 4-Acid Digestion |
| Y, Yttrium (ppm) | 12.8 | 1.3 | 11.8 | 13.8 | 4-Acid Digestion |
| Yb, Ytterbium (ppm) | 1.19 | 0.16 | 1.00 | 1.37 | 4-Acid Digestion |
| Zn, Zinc (ppm) | 72 | 4.5 | 68 | 76 | 4-Acid Digestion |
| Zr, Zirconium (ppm) | 79 | 10 | 70 | 89 | 4-Acid Digestion |
Product Specifications
State
primary
Matrix
sulphide
Mineralisation
skarn
Availability
available
Certified Reference Values
| Analyte | Certified Value | Uncertainty (1SD) | 95% Confidence Low | 95% Confidence High | Method |
|---|---|---|---|---|---|
| Ce - Cerium (ppm) | 59 | - | - | - | 4-Acid Digestion |
| Dy - Dysprosium (ppm) | 2.84 | - | - | - | 4-Acid Digestion |
| Er - Erbium (ppm) | 1.35 | - | - | - | 4-Acid Digestion |
| Eu - Europium (ppm) | 1.00 | - | - | - | 4-Acid Digestion |
| Gd - Gadolinium (ppm) | 4.11 | - | - | - | 4-Acid Digestion |
| Ho - Holmium (ppm) | 0.50 | - | - | - | 4-Acid Digestion |
| Sm - Samarium (ppm) | 5.06 | - | - | - | 4-Acid Digestion |
| Yb - Ytterbium (ppm) | 1.19 | - | - | - | 4-Acid Digestion |
SD = Standard Deviation | CL = 95% Confidence Limits
Methods: AR = Aqua Regia, 4-Acid = 4-Acid Digestion, LBF = Lithium Borate Fusion, FA/AAS = Fire Assay with Atomic Absorption, LECO = LECO Combustion Analysis
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