• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Kazakhstan
Varvara hub Operation (Komar Mine, Varvara Mine)

This page is not tailored to
devices with screen width under 750 px.
 Location:
130 km SW from Kostanai, Kazakhstan

  Regional Office:
Prospect Narodnogo Opolcheniya 2
St. Petersburg
Russia
Phone  ...  Subscription required
Fax+7-812-753-6376
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Kazakhstan
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mine Life2032


Owners

Source: p. 81
CompanyInterestOwnership
Polymetal International plc 100 % Indirect
Polymetal International plc holds Varvara through its 100% subsidiary Varvarinskoye JSC and Komar through its 100% subsidiary Komarovskoye Mining Company LLC.

Deposit Type

  • Skarn


Summary:

The mineralized bodies at Varvarinskoye are classic gold-copper skarn types that are primarily contained within the eastern side of the local fault and are associated with the border between geological formations. Copper-gold porphyry is overlaid with quartz-sulphide gold veins and scarn to produce very complex and geometrically complicated zones of economic mineralisation. Mineralisation is discontinuous over a strike length of 4 km and is divided into five zones.

The main primary copper mineral is chalcopyrite with some bornite. The gold is mostly in free form and associated with pyrites and other sulphides. A hallow oxidation zone occurs within 10 to 50 m below the surface. In this part of the Varvara deposit, copper is mostly represented by oxide minerals not amenable to conventional flotation.

Based on mineralogy and metallurgical characteristics, all mineralisation is divided into four types based on the degree of oxidation and copper grade:

1. primary gold (copper less than 0.2 per cent.);
2. primary copper (with gold present);
3. oxide gold (copper less than 0.1 per cent.);
4. oxide copper (with gold present).

Types 1 and 3 are processed through the leaching circuit and are known as leach ore. Type 2 is processed through the flotation circuit and is known as float ore. Type 4 is currently stockpiled separately and not processed.

Komarovskoye is a low-sulphide quartz gold deposit located along the contact of the granite intrusion. Mineralisation occurs within the fault zone and consists of steeply dipping quartz-carbonate-micaceous metasomatites hosted by schists. The overall strike length of Komarovskoye is approximately 6,800m with individual mineralised zones generally 500-600m in length, 4-6m in width. Oxidation depth is limited to 30-50m below surface.


Mining Methods

  • Truck & Shovel / Loader


Summary:

At both Varvara and Komar, ore is mined via conventional open-pit truck-shovel and drill-and-blast methods. The current life-of-mine plan provides for open-pit mining until 2032, with further extensions anticipated as a result of pit enlargement and additional exploration activities, particularly at Komar.


Crushing and Grinding


Processing

  • Flotation
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

Varvara’s processing facilities are located at a single site. Varvara has two distinct ore types based on their copper content. Run-of-mine ore is crushed in batches in a single jaw crusher, with separate crushed ore storage for leach and float material. Gold doré and gold-copper concentrate are produced from the two circuits of the single processing plant.

The float ore circuit comprises two-stage milling (SAG mill and ball mill) and conventional flotation. Concentrate is thickened, filtered, packed in big bags and trucked to a railway spur for transport to the off-taker.

The leach ore circuit comprises two-stage milling, conventional CIP leaching, carbon desorption, carbon regeneration, electrolysis and smelting. The ultimate product is gold dore.

Ore containing more than 0.2% copper (float material) goes to a 1,050 ktpa flotation circuit with the final product being a gold-copper concentrate which is sold to an off-taker.

Ore containing le ........

Recoveries & Grades:

CommodityParameter201920182017
Gold Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Head Grade, g/t 1.51.41.4
Copper Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Head Grade, % 0.490.480.61
Subscription required - Subscription is required.

Production:

CommodityProductUnits201920182017
Gold Metal in concentrate koz  ......  Subscription required  ......  Subscription required9.2
Gold Metal in doré koz  ......  Subscription required  ......  Subscription required114
Gold Metal in conc./ doré koz  ......  Subscription required  ......  Subscription required123
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Equivalent Metal in conc./ doré koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics20192018
Ore tonnes mined  ......  Subscription required  ......  Subscription required
Waste  ......  Subscription required  ......  Subscription required
Tonnes processed  ......  Subscription required  ......  Subscription required
Annual processing capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at January 1, 2020:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 38,690 kt Gold 1,578 koz
Proven & Probable 38,690 kt Copper 17.7 kt
Proven & Probable 38,690 kt Gold Equivalent 1.4 g/t 1,690 koz
Total Resource 25,520 kt Gold 1,274 koz
Total Resource 25,520 kt Copper 30.4 kt
Total Resource 25,520 kt Gold Equivalent 1.8 g/t 1,465 koz

Commodity Production Costs:

CommodityUnits201920182017
Total cash costs Gold Equivalent USD  ......  Subscription required  ......  Subscription required 701 / oz
All-in sustaining costs (AISC) Gold Equivalent USD  ......  Subscription required  ......  Subscription required 952 / oz
Subscription required - Subscription is required.

Financials:

Units201920182017
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 15, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2020 MDO Data Online Inc.