OREAS 80

OREAS 80 is a nickel sulphide Certified Reference Material prepared from a
diverse suite of natural ores and geological materials sourced from several
world-class mining and exploration operations. The blend incorporates low- and
high-grade nickel sulphide ores from Xstrata Nickel’s Leinster region (Western
Australia), supplemented by PGE-rich ultramafic material from Anglo American’s
UG2 Reef (South Africa), orogenic gold ore from Frogs Leg (Western Australia),
and mafic gabbroic material from Black Hill (Western Australia). Additional
nickel sulphide feed sourced from Mt Keith has been included to provide further
control over Ni, Cu and Co concentrations.
OREAS 80 has been characterized using the following methods:

Lithium borate fusion with X-ray fluorescence
Full ICP-OES and ICP-MS elemental suites by 4-acid (HNO3-HF-HClO4-HCl)
digestion
Sodium peroxide fusion or lithium borate fusion with full ICP-OES and
ICP-MS suites
Sulphur by infrared combustion furnace
Certified values for applicable analytes are operationally defined for each
method, with results under OREAS ISO 17034 scope of
accreditation.