A comparison of the lead phosphates from the Oxidised Zone, broken hill ore body, with those of some other Australian localities
Titel:
A comparison of the lead phosphates from the Oxidised Zone, broken hill ore body, with those of some other Australian localities
Auteur:
Barclay, C. J. Jones, J. B.
Verschenen in:
Australian journal of earth sciences
Paginering:
Jaargang 18 (1971) nr. 3 pagina's 207-213
Jaar:
1971-11
Inhoud:
A method of using the X-ray fluorescence spectrometer has been adopted for the analyses of lead phosphates, and eight samples of phosphates from Broken Hill and three from the Flinders Ranges, South Australia, were analysed by this means. Of these, five were found to be mimetite and six pyromorphite, several being rich in calcium. Dividing the sources into geochemical areas we find that the specimens from Broken Hill have no vanadium and a low alkaline metal earth content while those from the Flinders Ranges have a small, but noticeable vanadium content and high alkaline metal earth content. A poorer X-ray diffraction fit of a calcium-rich mimetite to the hexagonal structure indicates that the monoclinic structure could be of more importance in the members of this composition.
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