OREAS 66a was prepared from gold-silver ore from Martabe, North Sumatra, Indonesia blended with fresh alkali olivine basalt from the Newer Volcanics Province, Victoria, Australia. Martabe is an epithermal high sulphidation gold deposit hosted by a sequence of tertiary volcanic and sedimentary rocks near a fault splay of the Great Sumatran Fault complex.
|Analyte||Certified Value||1SD||95% Confidence Limits Low||95% Confidence Limits High||Method|
|Au, Gold (ppm)||1.24||0.054||1.21||1.26||Pb Fire Assay|
|Ag, Silver (ppm)||18.9||1.20||18.4||19.4||4-Acid Digestion|
|Cu, Copper (ppm)||121||7||117||124||4-Acid Digestion|
Each quarter, we will keep you up to date with news on the latest OREAS CRMs and QA/QC best practices in the analytical industry.