OREAS 601c was prepared from a blend of silver-copper-gold bearing ores from Evolution Mining’s Mount Carlton Operation in Queensland, Australia and barren rhyodacite rock sourced from a quarry east of Melbourne, Australia. A small quantity of copper-gold-silver concentrate (Mount Carlton) was added to help achieve the desired grades.
The mineralisation assemblage at Mount Carlton consists of pyrite, enargite/tennantite, tetrahedrite, digenite, covellite, sphalerite, galena, alunite, dickite, kaolinite and vuggy silica, hosted in argillic altered rhyodacite containing sulphur-salts.
The certification program includes:
Indicative values for Sulphate Sulphur and Sulphide Sulphur (among others) are also available.