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Stratoni is an underground, silver-lead-zinc mine located in the Halkidiki Peninsula in northern Greece.

It uses a multi-stage flotation process to extract a lead-silver concentrate and a zinc concentrate.

Key Facts

Location Halkidiki Peninsula, Greece
Mine type Underground
Metals mined Silver, Lead, Zinc
Employees/contractors (including Kokkinolakkas TMF) ~500
Expected mine life 3 years*
Deposit type Silver-lead-zinc carbonate replacement
Ownership 95%
Resources & Reserves

* Based on current proven and probable reserves.

2019 Outlook

Stratoni is expected to process 210,000 tonnes of ore at grades 6% lead, 9% zinc and 165 grams per tonne silver. Sustaining capital expenditure at Stratoni is expected to be $5-10 million including mine mobile equipment purchases and overhauls, mine facility upgrades and upgrades to some of the process facilities.

Through additional investment in the exploration program at Stratoni planned for 2019, the Company expects to continue to extend mine life. An additional 10,000 metres of resources expansion drilling is planned for the year.

Virtual Tour

Operating Data

2019E 2018A 2017A
Concentrate produced (t) - 37,091 36,699
Concentrate sold (t) - 34,764 41,693
Ore mined/processed (t) 210,000 146,726 150,734
Grades 165 g/t silver, 6% lead, 9% zinc 172 g/t silver, 6.7% lead, 9.3% zinc 159 g/t silver, 5.8% lead, 9.4% zinc
Cash Costs ($/t) - 1,135 1,062
Sustaining capex ($M) 5.0-10.0 0.0 0.6

Geology and Mineralization

The deposit is a silver-lead-zinc carbonate replacement deposit that is hosted within marble of the Kerdilya Formation. The deposit is localized along the south dipping Stratoni Fault, a major structural feature and important mineralizing corridor in the centre of the Stratoni region. The fault separates the Kerdylia Formation to the north, host to the carbonate replacement deposits, from the Vertiskos Formation to the south, host to the Skouries porphyry gold-copper deposit. Mineralization extends for at least 8km along the fault with the historically mined Madem Lakkos deposit to the east of Mavres Petres, and Piavitsa, the focus of Eldorado Gold’s current exploration activity, to the west.


Exploration at Stratoni is focused on testing the open western and downdip extensions to the deposit.


2012 Eldorado acquires Stratoni via the acquisition of European Goldfields
2011 EIA received for the Kassandra Mines (includes Olympias, Skouries and Stratoni)
2005 Operations re-started at Stratoni by Hellas Gold, a subsidiary of European Goldfields
2004 Operation passed to Greek State and subsequently to Hellas Gold
2003 TVX closed Stratoni
1996 Ownership transferred to TVX Gold Incorporated from Hellenic Fertilizer Company