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
Certificate DataPack SDS NRAM (255 KB)

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