Highest Performing Gold CRMs

As geologists and chemists, we understand the critical need to match Certified Reference Materials with field samples, ensuring commutability of materials under the same digestion and fusion methods for accurate and reliable analysis.

For this reason, we have over 130 different OREAS gold CRMs covering a broad range of mineralisation styles and grade ranges including orogenic, epithermal (low and high sulphidation), porphyry copper-gold, IOCG, Carlin, Witwatersrand, VMS and magmatic.

All OREAS gold reference materials undergo homogeneity testing using instrumental neutron activation analysis (INAA) at Actlabs in Ancaster Canada or the Australian Nuclear Science and Technology Organisation (ANSTO) research facility in Lucas Heights Australia.

INAA is a highly precise, non-destructive technique compared with conventional fire assay and can be used on samples as little as 85mg. By assaying a reduced subsample, a sampling error is theoretically induced, and this enables the absolute homogeneity of the CRM to be quantified. For further information, please see our technical note.

To streamline assay monitoring and data handling, each OREAS® CRM is supplied with a downloadable Certificate of Analysis and DataPack. These comprehensive resources provide our customers with complete transparency of the preparation and characterisation process.