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The Tumbarumba Basaltic Gem Field, New South Wales: in relation to sapphire-ruby deposits of eastern Australia

  • Sutherland F
  • Graham I
  • Pogson R
  • et al.
Records of the Australian Museum (2002) 54(2) 215-248
DOI: 10.3853/j.0067-1975.54.2002.1358
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Abstract

Tumbarumba gemfield in the Snowy Mountains basalt province, NSW, yields corundums, zircons and garnet, corroded by magmatic effects and abraded by alluvial transport. Sub-basaltic contours suggest present drainage profiles mimic Miocene sub-basaltic leads. Six types of corundum were identified. Blue, green, yellow (BGY) zoned sapphires (80%) contain ferrocolumbite as a main mineral inclusion and exhibit variable Fe2O3/TiO2 and low Cr2O3/Ga2O3 (

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APA

Sutherland, F. L., Graham, I. T., Pogson, R. E., Schwarz, D., Webb, G. B., Coenraads, R. R., … Allen, T. C. (2002). The Tumbarumba Basaltic Gem Field, New South Wales: in relation to sapphire-ruby deposits of eastern Australia. Records of the Australian Museum, 54(2), 215–248. https://doi.org/10.3853/j.0067-1975.54.2002.1358

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