OREAS 106

High grade uranium reference material OREAS 106 was prepared from samples sourced from the Crocker Well Project located in the Olary District of the Curnamona Province of South Australia. Uranium mineralization occurs within basement intrusives primarily as thorian brannerite as a disseminated accessory mineral or in fractures, breccias or quartz veins in sodic plagioclase rich mesoproterozoic granitoids and gneisses. In the east of the deposit uranium occurs as davidite. The Crocker Well material was blended with barren rhyodacite to achieve the desired grade of uranium in OREAS 106.

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
U, Uranium (ppm) 1143 34 1126 1161 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 644 30 625 662 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 54 3.0 51 56 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 689 18 637 741 Pressed Powder Pellet XRF
U, Uranium (ppm) 1213 43 1091 1335 Pressed Powder Pellet XRF
Ce, Cerium (ppm) 137 11 129 146 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 19.0 1.10 18.1 20.0 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 12.2 0.70 11.5 12.8 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 2.00 0.170 1.87 2.12 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 18.2 1.30 17.1 19.3 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 3.90 0.300 3.70 4.20 Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 1.59 0.030 1.57 1.60 Borate / Peroxide Fusion ICP
Lu, Lutetium (ppm) 1.66 0.050 1.63 1.69 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 84 5.0 80 88 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 19.7 1.20 18.7 20.7 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 20.7 1.50 19.5 22.0 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 3.10 0.180 2.92 3.28 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 1.88 0.120 1.77 1.99 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 12.1 0.60 11.7 12.6 Borate / Peroxide Fusion ICP
Downloads
Certificate DataPack SDS RADA (758 KB)
Add to cart
Pricing
  • 30g Sachet
    $8.95
Specifications
CRM Group