http://nla.gov.au/nla.obj-2836014067
Queensland. Department of Natural Resources, Mines and Energy, author. (2020). Opal and gem miners' handbook Retrieved February 15, 2026, from http://nla.gov.au/nla.obj-2836014067
Queensland. Department of Natural Resources, Mines and Energy, author. Opal and gem miners' handbook Brisbane, Queensland: Queensland. Department of Natural Resources, Mines and Energy, 2020. Web. 15 February 2026 <http://nla.gov.au/nla.obj-2836014067>
Queensland. Department of Natural Resources, Mines and Energy, author. 2020, Opal and gem miners' handbook Queensland. Department of Natural Resources, Mines and Energy, Brisbane, Queensland viewed 15 February 2026 http://nla.gov.au/nla.obj-2836014067
{{Citation
| author1=Queensland. Department of Natural Resources, Mines and Energy, author.
| title=Opal and gem miners' handbook
| year=2020
| section=1 online resource. (24 pages : illustrations, chiefly colour, diagrams)
| edition=Version 1.
| location=Brisbane, Queensland
| publisher=Queensland. Department of Natural Resources, Mines and Energy
| url=http://nla.gov.au/nla.obj-2836014067
| id=nla.obj-2836014067
| access-date=15 February 2026
| via=Trove
}}
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