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United States
Middle Tennessee Complex

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 Location:
2 km N from Gordonsville, Tennessee, United States
  Address:
(P.O. Box 188)120 Zinc Mine Circle
Gordonsville
Tennessee, United States
38563
Phone  ...  Subscription required
Fax+1 615 683 6568
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Zinc
Mining Method
  • Room-and-pillar
Processing
  • Flotation
  • Dense media separation
Middle Tennessee Complex is comprised of three underground zinc mines: Gordonsville, Elmwood and Cumberland, and a processing plant located at the Gordonsville mine site.

During 2016, there was no production due to the operations being placed on care and maintenance during December 2015. Mining re-started in May 2017.

Owners

 
CompanyInterestOwnership
Nyrstar 100 % Direct
Deposit Type

  • Mississippi Valley Type

Summary:

Middle Tennessee Mines is comprised of three operating mines: Gordonsville, Elmwood, and Cumberland and one project, Stonewall, which are located approximately 80 kilometres east of Nashville, Tennessee. Zinc mineralisation occurs in Mississippi Valley Type (‘MVT’) deposits as open-space fillings of breccias and fractures within limestones and dolomites. In MTM, the zinc mineralisation contains recoverable amounts of germanium and gallium.

Mining Methods

  • Room-and-pillar

Summary:

Processing Technologies

  • Flotation
  • Dense media separation

Summary:

The Middle Tennessee zinc mine complex has a history of close association with Nyrstar’s Clarksville smelter, which was originally constructed to treat zinc concentrate from the mines. Ore mined at the three mines is processed into zinc concentrate at the Gordonsville zinc mine complex.

Along with zinc concentrate, Middle Tennessee delivers recoverable amounts of germanium and gallium as by-products to the Clarksville smelter.

Recoveries & Grades:

CommodityParameter20182017201520142013
Zinc Recovery Rate, % 94.392.898.195.593.8
Zinc Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityProductUnits20182017201520142013
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required747479
Zinc Metal in concentrate kt  ......  Subscription required  ......  Subscription required474750
Subscription required - Subscription is required.

Operational Metrics:

Metrics20182017201520142013
Tonnes milled  ......  Subscription required  ......  Subscription required1,482 kt of ore1,555 kt of ore1,648 kt of ore
Subscription required - Subscription is required.

Reserves at December 31, 2018:

CategoryTonnage CommodityGrade
Proven 0.16 Mt Zinc 4.5 %
Probable 2.19 Mt Zinc 3.3 %
Proven & Probable 2.35 Mt Zinc 3.4 %
Measured 0.18 Mt Zinc 4.7 %
Indicated 3.67 Mt Zinc 3.4 %
Measured & Indicated 3.86 Mt Zinc 3.5 %
Inferred 16.01 Mt Zinc 3.5 %

Operating Costs:

Units20182017
Direct operating costs ($/t milled) USD 6560

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 13, 2019
....................... Subscription required ....................... Subscription required Subscription required Apr 16, 2019
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2017
................................... Subscription required 2017
................................... Subscription required 2017
................................... Subscription required 2016
Annual Report 2015
Year-end Mineral Reserves 2015
Annual Report 2014
Year-end Mineral Reserves 2014
Corporate Presentation 2010
Subscription required - Subscription is required.

Aerial view:

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