[1] Olympias is a gold-rich polymetallic carbonate replacement deposit hosted in strongly deformed metamorphic rocks of the Paleozoic Kerdylia Formation of the Serbo-Macedonian Massif in northeastern Greece.
The host rocks consist of biotite gneiss and schist interlayered with marble horizons, irregular pegmatite lenses and aplite.
Tailings retreatment started in late 2012, produced approximately 20,000 ounces of gold per year and was completed in early 2016.
Phase 2 (2017-2022) Phase 2 involves processing ore from the underground through the existing processing plant, reconfigured to produce three concentrates: lead-silver, zinc and gold bearing pyrite-arsenopyrite.
Phase 3 (~2022-2025) In Phase 3, production ramps up to an estimated 170,000 ounces of gold and 130,000 ounces of gold equivalent per year on completion of a new processing plant in the adjacent Stratoni Valley.