OREAS 752c

OREAS 752c has been prepared from a blend of spodumene concentrate derived from the processing of lithium pegmatite ores sourced from the Greenbushes area of southwest Western Australia, Londonderry lithium-pegmatite ore (containing elevated levels of lithium, rubidium, cesium, tin and tantalum), barren granodiorite and quartz. The barren granodiorite was sourced from the mafic, S-Type, Late Devonian Bulla Granodiorite complex located in northern Melbourne, Australia.

OREAS 752c has been characterized using the following methods:

  • Major elements by oxidising fusion with XRF finish including Loss on Ignition (LOI) at 1000 °C
  • Lithium borate or sodium peroxide fusion with full suite elemental package by ICP-OES and/or MS finish
  • Full ICP-OES and ICP-MS elemental suites by 4-acid (HNO3-HF-HClO4-HCl) digestion

Certified values for applicable analytes are operationally defined for each method, with results under OREAS ISO 17034 scope of accreditation.

Note: Analyte values are indicative only and may change when certified.
Analyte Indicative Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Li, Lithium (wt.%) 0.700 TBD TBD TBD Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 504 TBD TBD TBD 4-Acid Digestion
Cs, Caesium (ppm) 80 TBD TBD TBD 4-Acid Digestion
Sn, Tin (ppm) 90 TBD TBD TBD 4-Acid Digestion
Ta, Tantalum (ppm) 185 TBD TBD TBD 4-Acid Digestion
Fe, Iron (wt.%) 1.00 TBD TBD TBD Borate Fusion XRF
Nb, Niobium (ppm) 76 TBD TBD TBD 4-Acid Digestion
S, Sulphur (wt.%) 0.040 TBD TBD TBD 4-Acid Digestion
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Certificate DataPack SDS NRAM (249 KB)
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