OREAS 19a
Specs
- CRM Type: primary
- Matrix: meta-volcanogenic/basalt
- Mineralisation: orogenic lode gold
CRM Group
Price
- 60g = $5.34
- 1kg = $89.00
Reference material OREAS 19a 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 |
|---|---|---|---|---|---|
| Gold, Au (ppm) | 5.49 | 0.10 | 5.45 | 5.54 | Pb Fire Assay |