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Australia
Waterloo Mine (Thunderbox Operation)

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 Location:
89 km NW from Leonora, Western Australia, Australia

  Address:
Level 1, 388 Hay Street PO Box 2008
Subiaco
Western Australia, Australia
6008
Phone  ...  Subscription required
Fax+61 8 6188 2111
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Overview

StatusInactive / Suspended
Mine TypeUnderground
Commodities
  • Nickel
The Waterloo Nickel project was previously mined between 2005-2008 by Norilsk Nickel. The deposit is currently being assessed by Saracen's technical services group to determine what options are available for future development.

The Waterloo Project is comprised of the Waterloo and Amorac nickel deposits.


Owners

Source: p. 2
CompanyInterestOwnership
Northern Star Resources Ltd. 100 % Indirect
The Scheme of Arrangement in relation to the merger of Northern Star and Saracen Mineral Holdings Limited (Saracen) was implemented on 12 February 2021, As a result, Saracen became wholly owned subsidiarie of Northern Star on 12 February 2021.

The tenement is held by Northern Star Resources Limited, a wholly owned subsidiary of Northern Star Resources Mineral Holdings Limited.

Contractors

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Deposit Type

  • Magmatic


Summary:

The Thunderbox Operations (TBO) includes Waterloo Project (comprised of the Waterloo and Amorac nickel deposits).

The Waterloo deposit lies on the eastern limb of a tightly folded ultramafic unit in an anticlinal structure within southern extensions to the Perseverance – Mt Keith nickel belt. The nickel sulphide mineralisation at Waterloo is associated with the basal contact of a serpentinised ultramafic unit in a sequence dominated by low-Mg komatiitic ultramafic rocks, pyroxenites, mafic volcanic or intrusive rocks and metasedimentary rocks. The deposit has been outlined over a strike length of almost 900 m. The dip dimension ranges from 50 to 70 m.

There are four main styles of mineralisation at Waterloo: massive, matrix, disseminated and remobilised sulphides. The disseminated mineralisation lies stratigraphically above the matrix zone, while the majority of the high-grade mineralisation appears to be localised in the vicinity of the gold structure, which lunges shallowly south.

The massive (or breccia) sulphides are typified by nickel grades of 10% or more that occur as localised, thin zones on the basal contact of the host ultramafic or, less commonly, as thicker, presumably remobilised, zones internal to the ultramafic.

The bulk of the contained metal in the deposit occurs in a continuous zone of matrix sulphides that generally grades in the range of about 3 to 10% Ni. This zone usually occurs immediately above the basal con ........


Mining Methods


Summary:


Crushing and Grinding


Processing



Combined production numbers are reported under Thunderbox Operation


Reserves at June 30, 2020:

CategoryTonnage CommodityGradeContained Metal
Total Resource 690 kt Nickel 2.1 % 14 kt



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Year-end Mineral Reserves 2017
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