OREAS 245 was prepared from a blend of high grade gold-bearing ore and barren metasediments. The gold ore was sourced from the central Victorian goldfields and is hosted within a metamorphosed turbidite sequence of interbedded sandstones, siltstones and shales. Gold mineralisation mainly occurs within disseminated arsenopyrite and pyrite ± stibnite-quartz zones.
Thirty-five commercial analytical laboratories participated in the program to certify:
Gold by fire assay;
Full ICP-OES and ICP-MS elemental suites by 4-acid digestion.
| CRM Code |
Principle Certified Values |
State |
Matrix |
Mineralization |
| OREAS 245 |
Au 25.73ppm |
Ag 1.44ppm |
Al 6.24%ppm |
primary |
metasediments |
orogenic lode Au |