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United States
Hibbing Taconite Mine (U.S. Iron Ore Operation)

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 Location:
6 km W from Chisholm, Minnesota, United States

  Address:
4950 County Road 5 North
P.O. Box 589
Hibbing
Minnesota, United States
55746
Phone  ...  Subscription required
Fax218-262-6877
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Processing
  • Magnetic separation
  • Rotary kiln & Electric furnace
Mine Life6 years (as of Jan 1, 2019)
On August 12, 2019, Cliffs Mining Company, ceased performing manager duties for the Hibbing mine and transitioned those duties to ArcelorMittal USA. Prior to this transition, Cliffs managed the Hibbing mine and their joint venture partners made required capital contributions and paid for their share of the iron ore.


Owners

Source: p. 1
CompanyInterestOwnership
United States Steel Corp. 14.7 % Indirect
Cleveland-Cliffs Inc. 23 % Indirect
ArcelorMittal SA 62.3 % Indirect
Hibbing Taconite Company 100 % Direct
Hibbing Taconite Company is a joint venture between ArcelorMittal (62.3%), Cleveland- Cliffs (23%) and U.S. Steel (14.7%). Each partner takes its share of production pro rata; however, provisions in the joint venture agreement allow additional or reduced production to be delivered under certain circumstances.

Deposit Type

  • Iron formation hosted
  • Sedimentary


Summary:

Both the Minorca and Hibbing mines are located in the Mesabi iron range where iron ore has been extracted for over 100 years. The ore bodies are within the Biwabik Iron Formation, a series of shallow dipping Precambrian sedimentary rocks known as taconite with a total thickness in excess of 200 meters and running for approximately 200 kilometers.

Hibbing Taconite is a Lake Superior-type granular magnetite taconite deposit.

Ores at Hibbing Taconite are hosted by a granular quartz, magnetite, siderite, ankerite, minnesotaite, stilpnomelane and haematite mineral assemblage. Principal ore grading parameters include crude magnetic iron percentage (MagFe), weight recovery (WtRec), final concentrate silica content (SiO2), and an ore hardness and work index value that characterises magnetite liberation (LIS).

The Hibbing Taconite deposit is situated within the westcentral zone of the Mesabi Iron Range, occupying ~10 km of strike length, dipping 6° to 8° southeast, within the Biwabik Iron Formation. An approximately 50 m thick section is mined from the central portion of the Lower Cherty member.

Of the minable units in the Lower Cherty member, the upper three (37 m) are predominantly ‘cherty’ or granular magnetite taconite, with 15 - 30 cm thick massive silicate-chert zones separated by up to 5 cm thick slaty bands. The lower two units (10 m) are predominantly ‘slaty’ taconite with interbedded argillite, magnetite, and minor haematite forming slaty bands from 5 - 25 cm in thickness, separated by 5 - 10 cm cherty zones.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Hibbing mine is located in the center of Minnesota’s Mesabi Iron Range and is approximately ten miles north of Hibbing, Minnesota, and five miles west of Chisholm, Minnesota. Over the past five years, the Hibbing mine has produced between 7.5 million and 8.2 million long tons of iron ore pellets annually. Mining is conducted on multiple mineral leases having varying expiration dates. Mining leases routinely are renegotiated and renewed as they approach their respective expiration dates. Hibbing is an open pit mine.


Crushing and Grinding
Crusher / Mill TypeModelSizePowerQuantity
AG mill

Summary:

Single stage crushing, AG mills.


Processing

  • Magnetic separation
  • Rotary kiln & Electric furnace

Source: Subscription required

Summary:

Hibbing operations consist of an open pit truck and shovel mine, a concentrator that utilizes single stage crushing, AG mills and magnetic separation to produce a magnetite concentrate, which is then delivered to an on-site pellet plant. From the site, pellets are transported by BNSF rail to a ship loading port at Superior, Wisconsin, operated by BNSF.

Recoveries & Grades:

CommodityParameter201920182017201620152014
Iron Ore Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityUnits201920182017201620152014
Iron Ore M long tons  ......  Subscription required  ......  Subscription required7.78.28.17.7
All production numbers are expressed as pellets.
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required30.7 Mt29.8 Mt27.3 Mt
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required8 M long tons of iron ore pellets8 M long tons of iron ore pellets8 M long tons of iron ore pellets
Subscription required - Subscription is required.

Reserves at December 31, 2019:
Note: the resources are exclusive of reserves.

CategoryTonnage CommodityGrade
Proven 106 Mt Iron (magnetite) 19.8 %
Probable 25 Mt Iron (magnetite) 19.6 %
Proven & Probable 131 Mt Iron (magnetite) 19.8 %
Measured & Indicated 146 Mt Iron (magnetite) 19.9 %
Inferred 5 Mt Iron (magnetite) 18.1 %


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 8, 2020
....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2020
....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2020
....................... Subscription required ....................... Subscription required Subscription required Oct 8, 2020
....................... Subscription required ....................... Subscription required Subscription required Oct 8, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Fact Sheet 2017
Form 10-K 2017
Form 10-K 2017
Annual Report 2016
Annual Report 2016
Form 10-K 2016
Annual Report 2015
Annual Report 2015
Annual Report 2015
Annual Report 2014
Annual Report 2014
Other 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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