Great Southern Land

2020 1oz Silver Proof

Opal Coin

The use of authentic Australian opal to depict iconic motifs on coins is an exclusive Perth Mint concept which has been used to remarkable effect on this stunning celebration of the Great Southern Land.

Key features:

  • Proof quality 99.99% pure silver
  • Authentic Australian opal
  • Australian Legal Tender
  • Limited mintage - 5,000


For centuries, Europeans speculated about Terra Australis Incognita – or the great unknown south land. Maritime explorers eventually confirmed its existence, revealing the island continent to be the home of an extraordinary range of wildlife and natural treasures.

Authentic Opal Reverse

This stunning silver coin features a central opal insert displaying it's beautiful array of colour in the shape of the Australian continent. Mined in three Australian states, opal is a colourful gemstone which in its most precious form is renowned for a spectacular ‘play of colours’.

The precious insert is encircled by representations of iconic Australian animals including the kangaroo, emu, koala, echidna, wombat and bilby. Also included on the reverse is the coin’s 2020 year-date, its weight and fineness, and The Perth Mint’s ‘P’ mintmark.

Presentation Packaging and Numbered Certificate

Accompanied by a numbered Certificate of Authenticity, this exceptional release is housed in a classic display case with a clear lid, and illustrated shipper.


Technical Specifications

Year Date 2020
Silver Content (Troy oz) 1
Monetary Denomination (AUD) 1
Fineness (% purity) 99.99
Minimum Gross Weight (g) 31.107
Maximum Diameter (mm) 36.60
Maximum Thickness (mm) 3.95
Maximum Mintage 5,000
Legal Tender Australian Legal Tender
Effigy Jody Clark effigy of H.M. Queen Elizabeth II
Designer Aleysha Howarth

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