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The laser Raman identity of gibbsite pseudomorphous after crocoite from Dundas, Tasmania

Rodgers, KA 1992 , 'The laser Raman identity of gibbsite pseudomorphous after crocoite from Dundas, Tasmania' , Papers and Proceedings of the Royal Society of Tasmania, vol. 126 , pp. 95-99 , doi: https://doi.org/10.26749/rstpp.126.95.

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Abstract

Gibbsite both invests and replaces crocoite in late supergene ores of the Dundas district, Tasmania. The laser Raman spectrum of the gibbsite shows strong, well-developed v-OH stretching bands at about 3370, 3440, 3525, 3620 cm-I, confirming its identity. Crocoite gives bands at 840 cm-Iv, 853 and 825 cm-l v3, 348 cm-lv2, 400, 377, 358, 338 and 326 cm-lv4, and at 179,135, and 118 em-I, corresponding to crystal field components of Pb-O vibrations and lattice modes. The chemistry of the late, mineralising fluids is unknown and the relative stabilities
of crocoite and gibbsite can not be determined.

Item Type: Article
Authors/Creators:Rodgers, KA
Keywords: Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
ISSN: 0080-4703
DOI / ID Number: https://doi.org/10.26749/rstpp.126.95
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
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