| Reference Type | Journal (article/letter/editorial) |
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| Title | Rare earth and uranium minerals present as daughter crystals in fluid inclusions, Mary Kathleen U-REE skarn, Queensland, Australia |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Kwak, T. A. P. | Author |
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| Abeysinghe, P. B. | Author |
| Year | 1987 (December) | Volume | 51 |
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| Issue | 363 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_51/51-363-665.pdf+ |
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| DOI | doi:10.1180/minmag.1987.051.363.05Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 1439 | Long-form Identifier | mindat:1:5:1439:1 |
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| GUID | 0 |
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| Full Reference | Kwak, T. A. P., Abeysinghe, P. B. (1987) Rare earth and uranium minerals present as daughter crystals in fluid inclusions, Mary Kathleen U-REE skarn, Queensland, Australia. Mineralogical Magazine, 51 (363) 665-670 doi:10.1180/minmag.1987.051.363.05 |
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| Plain Text | Kwak, T. A. P., Abeysinghe, P. B. (1987) Rare earth and uranium minerals present as daughter crystals in fluid inclusions, Mary Kathleen U-REE skarn, Queensland, Australia. Mineralogical Magazine, 51 (363) 665-670 doi:10.1180/minmag.1987.051.363.05 |
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| In | (1987, December) Mineralogical Magazine Vol. 51 (363) Mineralogical Society |
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| Abstract/Notes | AbstractAt least six separate rare earth and uranium-bearing daughter crystals occur in fluid inclusions hosted by andraditic garnet from the Mary Kathleen REE-U ore skarn, Queensland, Australia. The daughter minerals are particularly high in La, Nd and Ce which reflects the relatively high concentration of these in the bulk ore (La2O3 = 33.5%, Nd2O3 = 9.1% and Ce2O2 = 51.5% of the 2.6 wt. % REE common in the ore). The host garnets themselves contain up to 7600 ppm REE and 5 to 2700 ppm U. The energy-dispersive spectra (EDS) are consistent with the following minerals: a (Y, Ce, U, Ca, Fe, Nb, Ta) mineral; a (Ca, Fe, Ce) carbonate(?) mineral; a (Fe, Ca, Y, Ce, Nb, Ta) mineral; a possible carbonate of La, Mn and Nd; a chlorite of Mn and La as well as a possible chloride or oxychloride of K, Mg, Mn and La. Their occurrence infers that relatively high concentrations of REE and U prevailed in the original, oxidized, concentrated (30–70 wt. % total dissolved salts), high-temperature (550–670°) ore solutions. Their presence as daughter crystals may be due to the fact that CaCl2 is a dominant salt in the solutions and that the latter's solubility was sufficiently high to ‘salt out’ the less soluble REE-U components. |
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