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RB 80/00026 Opal in South Australia.
Enlarged written version of a talk on the geology of opal, its occurrence and mining methods prepared for public presentation.-
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Published: 01 May 1980
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1974 seismic survey, Everard, final report.
AIM:The 1974 Everard Seismic Survey consisted of a detailed grid of 103 km over the Munyarai prospect, and a regional tie line of 54 km with outcrops at the rim of the Officer Basin, to investigate the possibility of a prospective Ordovician sequence...-
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HandBk 005 - Opal: South Australia's Gemstone. Barnes L.C. et al. (1992 revised edition)
South Australia's famous desert opalfields supply about 80% of the world output of precious opal, with current production coming almost entirely from the major fields at Andamooka, Coober Pedy and Mintabie, each of which is expected to increase output...-
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RB 90/00073 Mintabie Opalfield mining and geology.
Mintabie Opalfield, one of the most important production centres in Australia, was discovered in the early 1920s but mining only began in earnest in 1976. Precious opal is confined to Mintabie beds, a kaolinitic sandstone of presumed Ordovician Age,...-
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Published: 01 Nov 1990
