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Reference material OREAS 17c was prepared from a blend of barren alkali olivine basalt from Epping, Victoria, Australia and gold-bearing Magdala ore from the Stawell Gold Mine, west-central Victoria, Australia. The Magdala lode is intimately associated with an intensely deformed package of volcanogenic sedimentary rocks. Mineralisation in the ore consists of a quartz-sericite-carbonate schist assemblage containing the sulphides pyrite and arsenopyrite. The major constituents of the alkali olivine basalt are feldspar, augite, olivine and titanomagnetite.
|Constituent||Certified Value||1SD||95% Confidence Low||95% Confidence High||Method|
|Au, Gold (ppm)||3.04||0.08||3.00||3.08||Pb Fire Assay|