OREAS 24d
SKU: 24d
OREAS 24d was prepared from olivine tholeiitic basalt from the Quaternary
Newer Volcanics Province, Victoria, Australia. It is characterised by very low
background gold of less than 1 parts per billion. Ten commercial analytical
laboratories participated in the program to characterise (in addition to gold by
fire assay) Ag, Al, As, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Hf, In,
K, La, Li, Lu, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, S, Sc, Sn, Sr, Ta, Tb, Th, Ti,
U, V, W, Y, Zn and Zr by 4-acid digestion with ICP-OES or ICP-MS
finish.
Specifications
- State: primary
- Matrix: basalt
- Mineralisation: barren
- CRM Group: Blank/lithogeochem/low-level
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Au, Gold (ppb) | < 1 | IND | IND | IND | Pb Fire Assay |
| Cu, Copper (ppm) | 43.2 | 2.29 | 41.6 | 44.8 | 4-Acid Digestion |
| Ni, Nickel (ppm) | 137 | 7 | 132 | 141 | 4-Acid Digestion |
| Ag, Silver (ppm) | < 0.200 | IND | IND | IND | 4-Acid Digestion |
| Al, Aluminium (wt.%) | 7.77 | 0.212 | 7.61 | 7.93 | 4-Acid Digestion |
| As, Arsenic (ppm) | 1.35 | 0.33 | 1.13 | 1.57 | 4-Acid Digestion |
| Ba, Barium (ppm) | 536 | 16 | 526 | 547 | 4-Acid Digestion |
| Be, Beryllium (ppm) | 2.14 | 0.143 | 2.06 | 2.21 | 4-Acid Digestion |
| Bi, Bismuth (ppm) | 0.030 | 0.007 | 0.025 | 0.034 | 4-Acid Digestion |
| Ca, Calcium (wt.%) | 5.62 | 0.251 | 5.44 | 5.80 | 4-Acid Digestion |
| Cd, Cadmium (ppm) | 0.12 | 0.02 | 0.10 | 0.14 | 4-Acid Digestion |
| Ce, Cerium (ppm) | 59 | 1.5 | 58 | 60 | 4-Acid Digestion |
| Co, Cobalt (ppm) | 44.2 | 2.42 | 42.5 | 46.0 | 4-Acid Digestion |
| Cr, Chromium (ppm) | 147 | 21 | 131 | 163 | 4-Acid Digestion |
| Cs, Caesium (ppm) | 1.18 | 0.066 | 1.13 | 1.22 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 7.97 | 0.381 | 7.70 | 8.24 | 4-Acid Digestion |
| Ga, Gallium (ppm) | 22.1 | 0.84 | 21.4 | 22.7 | 4-Acid Digestion |
| Hf, Hafnium (ppm) | 4.70 | 0.325 | 4.44 | 4.97 | 4-Acid Digestion |
| In, Indium (ppm) | 0.074 | 0.011 | 0.071 | 0.076 | 4-Acid Digestion |
| K, Potassium (wt.%) | 1.69 | 0.059 | 1.65 | 1.73 | 4-Acid Digestion |
| La, Lanthanum (ppm) | 29.1 | 2.01 | 27.7 | 30.5 | 4-Acid Digestion |
| Li, Lithium (ppm) | 10.8 | 0.65 | 10.2 | 11.3 | 4-Acid Digestion |
| Lu, Lutetium (ppm) | 0.23 | 0.03 | 0.20 | 0.26 | 4-Acid Digestion |
| Mg, Magnesium (wt.%) | 4.56 | 0.157 | 4.45 | 4.67 | 4-Acid Digestion |
| Mn, Manganese (wt.%) | 0.115 | 0.005 | 0.112 | 0.119 | 4-Acid Digestion |
| Mo, Molybdenum (ppm) | 4.46 | 0.350 | 4.15 | 4.78 | 4-Acid Digestion |
| Na, Sodium (wt.%) | 2.33 | 0.109 | 2.25 | 2.41 | 4-Acid Digestion |
| Nb, Niobium (ppm) | 44.6 | 4.14 | 41.0 | 48.2 | 4-Acid Digestion |
| P, Phosphorus (wt.%) | 0.252 | 0.016 | 0.241 | 0.264 | 4-Acid Digestion |
| Pb, Lead (ppm) | 3.56 | 0.44 | 3.24 | 3.87 | 4-Acid Digestion |
| Rb, Rubidium (ppm) | 37.2 | 4.2 | 34.4 | 40.1 | 4-Acid Digestion |
| S, Sulphur (wt.%) | 0.042 | 0.004 | 0.038 | 0.046 | 4-Acid Digestion |
| Sc, Scandium (ppm) | 20.0 | 1.11 | 19.2 | 20.7 | 4-Acid Digestion |
| Sn, Tin (ppm) | 1.89 | 0.088 | 1.82 | 1.95 | 4-Acid Digestion |
| Sr, Strontium (ppm) | 748 | 37 | 722 | 775 | 4-Acid Digestion |
| Ta, Tantalum (ppm) | 3.01 | 0.240 | 2.80 | 3.22 | 4-Acid Digestion |
| Tb, Terbium (ppm) | 0.79 | 0.044 | 0.75 | 0.83 | 4-Acid Digestion |
| Th, Thorium (ppm) | 3.78 | 0.326 | 3.53 | 4.03 | 4-Acid Digestion |
| Ti, Titanium (wt.%) | 1.22 | 0.053 | 1.17 | 1.26 | 4-Acid Digestion |
| Tl, Thallium (ppm) | 0.12 | 0.02 | 0.11 | 0.14 | 4-Acid Digestion |
| U, Uranium (ppm) | 1.40 | 0.089 | 1.34 | 1.46 | 4-Acid Digestion |
| V, Vanadium (ppm) | 201 | 7 | 197 | 206 | 4-Acid Digestion |
| Y, Yttrium (ppm) | 20.4 | 0.90 | 19.8 | 21.1 | 4-Acid Digestion |
| Zn, Zinc (ppm) | 104 | 7 | 99 | 109 | 4-Acid Digestion |
| Zr, Zirconium (ppm) | 205 | 6 | 201 | 209 | 4-Acid Digestion |
Ürün Özellikleri
Sertifikalı Referans Değerler
| Analit | Sertifikalı Değer | Belirsizlik (1SD) | %95 Güven Aralığı Alt | %95 Güven Aralığı Üst | Yöntem |
|---|---|---|---|---|---|
| Ce - Cerium (ppm) | 59 | - | - | - | 4-Acid Digestion |
| La - Lanthanum (ppm) | 29.1 | - | - | - | 4-Acid Digestion |
| Lu - Lutetium (ppm) | 0.23 | - | - | - | 4-Acid Digestion |
| Tb - Terbium (ppm) | 0.79 | - | - | - | 4-Acid Digestion |
| Y - Yttrium (ppm) | 20.4 | - | - | - | 4-Acid Digestion |
SD = Standart Sapma | CL = %95 Güven Limitleri
Yöntemler: AR = Kral Suyu, 4-Acid = 4-Asit Çözünürlük, LBF = Lityum Borat Füzyon, FA/AAS = Ateş Tahlili / AAS, LECO = LECO Yanma Analizi
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