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

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Rodgers, KA (1992) The laser Raman identity of gibbsite pseudomorphous after crocoite from Dundas, Tasmania. Papers and Proceedings of the Royal Society of Tasmania, 126. pp. 95-99. ISSN 0080-4703

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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 em-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 chemistty of the late, mineralising fluids is unknown and the relative stabilities of crocoite and gibbsite can not be determined.

Item Type: Article
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
Page Range: pp. 95-99
ISSN: 0080-4703
Additional Information: Copyright Royal Society of Tasmania
Date Deposited: 23 May 2012 02:20
Last Modified: 18 Nov 2014 04:34
URI: http://eprints.utas.edu.au/id/eprint/13734
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