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Australia

Argyle Mine

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Australia

Argyle Mine

Location: 37 km NE from Warmun, Western Australia, Australia

Regional Office:

Level 16, Central Park 152-158 St Georges Terrace
Perth
Western Australia, Australia
6000

Contacts:

Additional Resources for Suppliers & Investors

Categories

Summary

Mine TypeUnderground
StatusClosing / Closed
Commodities
  • Diamond
Mining Method
  • Block caving
Production Start... Lock
SnapshotArgyle was one of the world’s largest producers of diamonds and the largest supplier of natural coloured diamonds – including white, yellow, brown, blue, violet and the rare and the highly-coveted Argyle pink and red diamonds.

Production at the mine stopped in late 2020 and now the site is being rehabilitated in a process called closure execution.

As of December 2025, Rio Tinto continues rehabilitating the former Argyle diamond mine. Significant progress was made on reprofiling the former processing plant area, and waste rock dumps, and capping the tailings storage facility. Rio Tinto has now passed beyond 85% overall project completion, and the removal of the Argyle mine accommodation facilities, utilities infrastructure and airport is nearly complete.

Rio Tinto is on track to finish demolition, landforming and revegetation by the first quarter of 2026, followed by a projected monitoring and maintenance period of at least 10 years.

Owners

SourceSource
CompanyInterestOwnership
Rio Tinto plc 100 % Indirect
Rio Tinto Plc owns and operates the Argyle mine through its subsidiary Argyle Diamond Ltd.

Contractors

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SourceSource

Deposit type

  • Lamproite

Summary:

The Argyle AK1 pipe represented the first major deposit of diamonds found in lamproite (a kind of volcanic rock similar to kimberlite).

Reserves

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Mining Methods

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Heavy Mobile Equipment

Fleet data has not been reported.

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

The Argyle diamond mine closed on 3 November 2020.
CommodityUnits202020192018201720162015
Diamond k carats  ....  Subscribe 12,999 14,069 17,135 13,958 13,472
All production numbers are expressed as mineral.

Operational metrics

Metrics2018201720162015
Tonnes processed 5 Mt 5.1 Mt 4.8 Mt
Plant annual capacity 11 Mt

Production Costs

Commodity production costs have not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 17, 2026
....................... Subscription required ....................... Subscription required Subscription required Mar 17, 2026

Workforce

EmployeesYear
...... Subscription required 2019
...... Subscription required 2017
...... Subscription required 2016
...... Subscription required 2015

Aerial view:

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