OREAS 350 is a zinc concentrate certified reference material (CRM) prepared and certified by Ore Research & Exploration Pty Ltd. The material constituting OREAS 350 was sourced from the McArthur River Mining operation located in the Gulf of Carpentaria region in the Northern Territory of Australia. The mine is situated about 900 km southeast of Darwin. The major sulphides are pyrite, sphalerite and galena, with lesser chalcopyrite, arsenopyrite and marcasite.
| CRM Code |
Principle Certified Values |
State |
Matrix |
Mineraliztion |
| OREAS 350 |
Zn 44.12% |
Pb 8.2% |
Ag 96.6ppm |
primary |
concentrate |
SEDEX |