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Australia
Lanfranchi Mine

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 Location:
38 km SE from Kambalda West, Western Australia, Australia

  Project Contacts:
Level 9, 40 The Esplanade
Perth
Western Australia, Australia
6000
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
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  • Filings & News

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Overview

StageRestarting
Mine TypeUnderground
Commodities
  • Nickel
  • Copper
Mining Method
  • Open stoping
  • Paste backfill
Between 2005 and 2015, Lanfranchi produced a total of 3.85M tonnes of ore at an average grade of 2.45% Ni for 94,196t Ni.
The mine has been on care and maintenance since 2015.
Black Mountain Metals is in the process of returning the mine to production.


Owners

 
CompanyInterestOwnership
Lanfranchi Nickel Mines Pty Ltd. 100 % Direct
Black Mountain Metals LLC. 100 % Indirect

Contractors

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Deposit Type

  • Magmatic


Summary:

High-grade nickel sulphide deposits at Lanfranchi occur as ribbon-like shoots at the base of high magnesium komatiite lava flows or channels. The shoots and high-magnesium lava flows occupy channel structures developed in the underlying Lunnon (footwall) basalt. Above the high-magnesium komatiite flows is a thick sequence of progressively less magnesium-rich komatiite flows. Ten channel structures are recognised at Lanfranchi of which six have been mined historically.


Mining Methods

  • Open stoping
  • Paste backfill


Summary:

Historically, the majority of the ore has been mined via long-hole open stoping, which is a highly mechanised and low cost method. Using this method, access to the top and bottom of the ore block is established with tunnels, a slot raise is created, and holes are then drilled to blast the ore block. Once the ore block has been blasted and extracted, the stopes are filled with paste (tailings and cement mix) to stabilise the void and allow extraction of adjoining ore blocks.


Crushing and Grinding


Processing


Summary:

The nickel ore is trucked and treated at BHP Billiton Nickel West's Kambalda nickel concentrator under an Ore Tolling and Concentrate Purchase Agreement.

Recoveries & Grades:

CommodityParameter20162015
Nickel Head Grade, % 2.332.26

Projected Production:

CommodityUnits20162015
Nickel t 1,01910,575
Copper t  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.

Operational Metrics:

Metrics20162015
Ore tonnes mined 43,692 t468,491 t

Reserves at June 30, 2016:

CategoryTonnage CommodityContained Metal
Probable 208,000 t Nickel 4,300 t



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2022
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Corporate Filings & Presentations:

DocumentYear
Press Release 2018
Corporate Presentation 2016
Press Release 2016
Annual Report 2015
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