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Dukat and Lunnoe deposits are located in north-east Russia in Omsukchan district, Magadan Region, 650 km from Magadan. Dukat is the largest deposit in Russia and third in the world in terms of silver reserves and production volume.
Goltsovoe deposit is located 84 km southwards from Dukat Plant and considered as an additional mineral resources base for it. Ore from the deposit is of unique high quality. First ore is planned for Q3, 2010.
All three deposits are linked technologically and controlled as a single production facility. Lunnoe plant processes ore from Lunnoe and concentrate from Dukat and Goltsovoe.
Dukat Plant
Ore processing is conducted using conventional flotation. Concentrate resulting from flotation is transported to Lunnoe plant. There it is processed together with Lunnoe and Arylakh ore.
Lunnoe Plant
Lunnoe plant processes ore from Lunnoe and Arylakh deposits as well as concentrate from Dukat deposit using agitation cyanidation in tanks and Merrill-Crow process. Zinc concentrate is the final product which is delivered to a refinery to get gold and silver bullions.
In 2009 volume of silver production at Lunnoe increased by 10,2% due to growth of ore processing volume and silver head grade.
At the end of 2009 reconstruction of Omsukchan processing plant was completed to increase production up to 1 500 000 tons per year. Section №2 of the Omsukchan Plant was put into operation in full. In 2011 it’s planned to start-up of the gravity circuit, currently in the commissioning stage. Besides, second drying drum has been replaced and aspiration unit of filtration and drying section has been partly reconstructed.
Personnel (CJSC Magadan Silver, 31.12.2009) - 1789 persons.
Key Characteristics
| Dukat deposit |
| Mining method |
Open pit mining (beginning - 2002, completion – 2011),
Underground mining (beginning - 2002, completion – 2026) |
| Recovery method |
Gravity-flotation |
| Ore composition |
Vein zones and quartz-sulphide, quartz-chlorite-adular and quart-rhodonite veins |
| Lunnoe deposit |
| Mining method |
Open pit mining (Arylakh satellite deposit, from 2007), underground mining (from 2008). |
| Recovery method |
Cyanide leaching |
| Ore composition |
Vein zones, quartz-carbonate and rhodonite veins |
| Lunnoe deposit |
| Mining method |
Underground mining |
| Recovery method |
Crushing and delivery to Dukat plant for flotation followed by concentrate cyanidation at Lunnoe plant |
| Ore composition |
Ore field is mainly composed of rhyolite ignimbrites |
Licenses:
- MAG 03516 BE dated 27.09.2002 Silver mining from Goltsovoe deposit till 2024 (license holder – CJSC Ajax Miners team).
- MAG 03211 BE dated 05.12.2000 Gold, silver and accompanying metals mining from Dukat gold-silver deposit till 2017 (license holder - CJSC Magadan Silver)
- MAG 14476 BR dated 22.05.2008 Gold and silver exploration and mining Lunnoe gold-silver deposit and its flanks till 2016 (license holder - CJSC Magadan Silver)
- MAG 04150 BR dated 21.04.2008 Exploration and mining of gold and silver at Arylakh gold-silver deposit and its flanks (license holder - CJSC Magadan Silver)
- MAG 13850 BR dated 29.11.2006 Gold and silver exploration, prospecting and mining at Dukat ore field (license holder – CJSC Magadan Silver)
Click below for details on Ore reserves and mineral resources Statement
Click here for operation results of Dukat and Lunnoye
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Dukat Mine. Gold production
 Dukat Mine. Silver production
 Lunnoye Mine. Gold production
 Lunnoye Mine. Silver production
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