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United States
Robinson Mine

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 Location:
7 km W from Ely, Nevada, United States

  Address:
4232 West White Pine County Road 44
Ruth
Nevada, United States
89319
Phone  ...  Subscription required
Fax775-289-7349
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
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  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
  • Molybdenum
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life7 years (as of Jan 1, 2021)
The KGHM Robinson Nevada Mining Company is proposing additional development at the Robinson Mine, located approximately 7 miles west of Ely, Nevada, to extend mine life.
Under the Proposed Action, the company would develop approximately 260 acres, immediately south of the Robinson Mine, to serve as the King Waste Rock Dump.


Owners

Source: p. 57
CompanyInterestOwnership
KGHM Polska Miedz S.A. 100 % Indirect
Robinson Nevada Mining Co. (operator) 100 % Direct
Robinson Nevada Mining Company, a wholly owned subsidiary of Poland-based KGHM Polska Miedz S.A., owns and operates the Robinson Mine

Contractors

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Deposit Type

  • Porphyry
  • Skarn


Summary:

Copper mineralization at Robinson occurs in monzonite porphyry intrusive rocks and associated marginal garnet skarns with varying quantities of pyroxene, magnetite and sulfide which formed in the surrounding upper Paleozoic wall rocks. Early stage potassium silicate alteration in porphyry and skarn mineralization in the wall rocks are typically overprinted by a widespread and commonly intensive high acid alteration event which altered porphyry and some host units to quartz-sericite-pyrite or even advanced argillic assemblages locally. Carbonate host rocks were altered to pyritic marbles or silica pyrite rock containing up to 20 volume percent pyrite locally during this late stage alteration event. Early stage potassium silicate mineralization and skarn was dominated by pyrite and chalcopyrite and is generally low in sulfide with average values ranging from trace to 3%. The high acid alteration event is dominated by up to 10% or 20% pyrite with pyrite:chalcopyrite ratios typically ranging from 10:1 to more than 1,000:1. Where present in the late stage alteration zones, the chalcopyrite may be relict from earlier stage alteration events. Chalcopyrite appears to be the sole hypogene copper mineral, with a few possible exceptions.

Skarn and porphyry ores form much of the current resource and reserve with grades ranging from cutoff (and below) to greater than 1.0%. Metallurgical recoveries in this material are generally good, but are complicated where weathering has par ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mine is comprised of 3 large pits: Liberty, TrippVeteran and Ruth. Currently, Ruth is in operation.

Mining is conducted by conventional open-pit methods. It comprises extraction using blasting materials and dump trucks, loading and ore transport to a processing plant.


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits202120202019201820172016
Copper kt  ......  Subscription required  ......  Subscription required  ......  Subscription required484954
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as payable metal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20142013
Ore tonnes mined 12.7 Mt16.2 Mt
Tonnes milled 13.7 Mt14.8 Mt

Reserves at December 1, 2020:

CategoryTonnage CommodityContained Metal
Proven & Probable 38 M tons Copper 905 M lbs
Proven & Probable 38 M tons Gold 410 koz
Proven & Probable 38 M tons Molybdenum 6 M lbs



Heavy Mobile Equipment as of December 31, 2009:
HME TypeModelSizeQuantity
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Loader (FEL) ....................... Subscription required ....................... Subscription required
Loader (FEL) ....................... Subscription required ....................... Subscription required
Shovel ....................... Subscription required ....................... Subscription required
Shovel ....................... Subscription required ....................... Subscription required
Shovel ....................... Subscription required ....................... Subscription required
Shovel ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required 240 tons ....................... Subscription required
Truck (haul) ....................... Subscription required 150 tons ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 4, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 4, 2022
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Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Financial Review 2018
Annual Report 2017
Annual Report 2016
Annual Report 2016
Annual Report 2015
Annual Report 2015
Year-end Mineral Reserves 2014
Technical Report 2009
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