OREAS 12a
Specs
- CRM Type: primary
- Matrix: meta-volcanogenic/basalt
- Mineralisation: orogenic lode gold
CRM Group
Price
- 60g = $5.34
Reference material OREAS 12a was prepared from 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 |
|---|---|---|---|---|---|
| Gold, Au (ppm) | 11.79 | 0.24 | 11.68 | 11.89 | Pb Fire Assay |