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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 907
Expected mine life 4 years*
Deposit type Silver-lead-zinc carbonate replacement
Ownership 95%
Resources & Reserves

* Based on current proven and probable reserves.

2018 Outlook

Stratoni is expected to process 160,000 tonnes of ore at grades 7.2% lead, 8.7 % zinc and 175 grams per tonne silver. Sustaining capital expenditure at Stratoni is expected to be $8 million and development capital expenditure is expected to be $4 million for the year.

Operating Data

2018E 2017A 2016A
Concentrate produced (t) 48,394
Concentrate sold (t) 42,655
Ore mined/processed (t) 160,000 153,000 184,963
Grades 175 g/t silver, 7.2% lead, 8.7% zinc 159 g/t silver, 6.0% lead, 9.5% zinc 6.1% lead, 10.2% zinc
Cash Costs ($/t) 774
Sustaining capex ($M) 8.0 3.2

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