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Greece
Stratoni Mine

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 Location:
3 km W from Stratoni, Greece

  Regional Office:
23A Vas.Sofias Ave. (and N.Vamba 2)
Athens
Greece
10674
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Fax+30 214 6870095
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Silver
  • Lead
  • Zinc
Mining Method
  • Drift & Fill
  • Transverse stoping
  • Longitudinal stoping
  • Cemented backfill
Production Start...
Mine Life3 years (as of Jan 1, 2022)
The Stratoni is an underground, silver-lead-zinc mine. The Stratoni mine consists of two deposits: Mavres Petres and Madem Lakkos, which were mined out previously. On October 15, 2021, Eldorado Gold announced that operations at Stratoni would be suspended at the end of 2021. The mine and plant were transferred to care and maintenance during 2022.

As of December 13, 2021 the workforce being re-distributed to other operations of Hellas Gold. Significant amounts of drilling are planned to continue exploration of Mavres Petres and build the reserve base. Drilling continued into 2022 with up to 3 surface drill rigs located in strategic positions.


Owners

Source: p. 141
CompanyInterestOwnership
Eldorado Gold Corp. 100 % Indirect
Hellas Gold, wholly owned subsidiary of Eldorado Gold Corp., is the 100% owner of the Stratoni.

Contractors

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Deposit Type

  • Carbonate replacement
  • Skarn


Summary:

The Stratoni polymetallic ore consists of stratabound replacement mineralisation hosted within marble horizons and may be termed a distal skarn. The mineralisation was emplaced by hydrothermal fluids driven by a granodioritic intrusive which was intruded some 30 million years ago. The mineralised zone is often referred to as the Stratoni-Piavitsa belt, and the total sulphide content of this belt prior to mining has been estimated at 25Mt. The deposits consist of massive sulphide carbonate and aplite replacement, restricted to two Marble horizons, interlayed with biotite gneiss and schist. The model therefore requires two components; marble horizons that have been thickened and structurally prepared by thrusting and folding prior to the introduction of mineralising fluids and; a structural architecture which has allowed the channelling of fluids from a magmatic source to the chemically reactive marbles. Exploration uses these two elements as a guide to identifying potential new ore zones.

The massive sulphide mineralisation has a relatively simple mineralogy, and the most abundant ore minerals are pyrite, sphalerite, galena, arsenopyrite and chalcopyrite. The dominant exploited minerals historically have been sphalerite, pyrite and galena; the ore is often abbreviated to BPG from the old notation blende, pitch, galena. The ore is also gold bearing, mostly associated with the arsenical pyrite and arsenopyrite. Quartz, calcite and minor rhodochrosite form the gangue ........


Mining Methods

  • Drift & Fill
  • Transverse stoping
  • Longitudinal stoping
  • Cemented backfill


Summary:

Mining was a combination of transverse and longitudinal drift-and-fill methods with rock breaking by conventional drill and blast. The drifts are then filled with cemented tailings (hydraulic fill) from surface. Ground support varies based on stopes size and ground conditions, utilizing a combination of steel sets, wiremesh, rock bolts and shotcrete.


Crushing and Grinding
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Processing

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Summary:

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Production:
Operations at Stratoni were suspended at the end of 2021.

CommodityUnits202120202019201820172016
Lead / Zinc kt  ......  Subscription required  ......  Subscription required  ......  Subscription required373748
All production numbers are expressed as concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Annual processing capacity  ......  Subscription required
Tonnes processed  ......  Subscription required183,467 t174,866 t146,726 t150,734 t184,963 t
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Reserves at September 30, 2021:
As of September 30, 2022, there were no changes in the reported Mineral Resources and Reserves at Stratoni Mine compared to September 30, 2021.

Mineral resource cut-off grade is $200/t NSR.

CategoryTonnage CommodityGradeContained Metal
Indicated 1,351 kt Silver 153 g/t 6,647 koz
Indicated 1,351 kt Lead 6.1 % 82 kt
Indicated 1,351 kt Zinc 8.7 % 117 kt
Inferred 1,700 kt Silver 162 g/t 8,866 koz
Inferred 1,700 kt Lead 6.2 % 106 kt
Inferred 1,700 kt Zinc 9.3 % 158 kt

Commodity Production Costs:

CommodityUnits202120202019201820172016
Cash costs (sold) Lead / Zinc USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,135 / t   1,062 / t   804 / t  
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Financials:

Units202120202019201820172016
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 0.6   3.2  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 41.9   51.2   40.6  
Gross profit M USD 5.8   5.6  
Earnings M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.4  
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Water Supply
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 7, 2023
....................... Subscription required ....................... Subscription required Subscription required May 8, 2023
....................... Subscription required ....................... Subscription required Subscription required May 7, 2023
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Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017
Subscription required Subscription required Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Annual Information Form 2022
Form 40-F 2022
Management Discussion & Analysis 2022
Sustainability Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Corporate Presentation 2018
Form 40-F 2018
Press Release 2018
Form 40-F 2017
Press Release 2017
Form 40-F 2016
Other 2016
Other 2015
Technical Report 2010
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