AN ONLINE FORUM RECORDED FRIDAY 22 OCTOBER, 2021

 
 

These recordings are provided with the permission of the organisers and presenters of the Science of Opal Formation symposium, held on 22 October 2021, for the benefit of registered participants. By clicking on this link, you agree that you will not share the link, the passcode or the recordings with others. 

If you wish to use material from these recording/s for non-commercial teaching purposes under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence, you may do so under those licence terms with the kind permission of the presenters. We would appreciate you emailing to tell us when, to whom and for what purpose you will use the recording/s.

Science of Opal Formation, Part 1

Please note that due to technical problems, the recording starts with a few minutes of silence. You can use the slider to skip to the start at around 13 minutes 10 seconds.

  • Welcome, overview and session protocols

  • Summary of key agreed knowledge about opal formation

Session 1 – Formation of opal: geological environment

  • Patrice Rey

  • Bruce Dickson

Session 2 – Formation of opal: physical and chemical processes

  • Boris Chauvire

  • John Watkins

 

Science of Opal Formation, Part 2

BREAK: Animated opal macrophotography by Robert A. Smith

Session 3 – Age of opal

  • Phil Bell

  • Bruce Dickson

  • Patrice Rey

Session 4 – Formation of opalised fossils

  • Phil Bell

  • Elizabeth Smith

Session 5 – Provenance and stability of opal

  • Paul Thomas

  • Anthony Smallwood

 

Science of Opal Formation, Part 3

BREAK: 2022 Opal Festivals in Australia then Animated opal macrophotography by Robert A. Smith

Session 6 – Scientific research assisting opal exploration

  • Kurt Steffens

  • Laz Katona

Discussion

Where to from here?

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