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Atkin, D., Basham, I. R., Bowles, J. F. W. (1983) Tristramite, a new calcium uranium phosphate of the rhabdophane group. Mineralogical Magazine, 47 (344) 393-396 doi:10.1180/minmag.1983.047.344.18

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Reference TypeJournal (article/letter/editorial)
TitleTristramite, a new calcium uranium phosphate of the rhabdophane group
JournalMineralogical MagazineISSN0026-461X
AuthorsAtkin, D.Author
Basham, I. R.Author
Bowles, J. F. W.Author
Year1983 (September)Volume47
Issue344
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_47/47-344-393.pdf+
DOIdoi:10.1180/minmag.1983.047.344.18Search in ResearchGate
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Mindat Ref. ID3537Long-form Identifiermindat:1:5:3537:2
GUID0
Full ReferenceAtkin, D., Basham, I. R., Bowles, J. F. W. (1983) Tristramite, a new calcium uranium phosphate of the rhabdophane group. Mineralogical Magazine, 47 (344) 393-396 doi:10.1180/minmag.1983.047.344.18
Plain TextAtkin, D., Basham, I. R., Bowles, J. F. W. (1983) Tristramite, a new calcium uranium phosphate of the rhabdophane group. Mineralogical Magazine, 47 (344) 393-396 doi:10.1180/minmag.1983.047.344.18
In(1983, September) Mineralogical Magazine Vol. 47 (344) Mineralogical Society
Abstract/NotesAbstractTristramite, a new mineral of the rhabdophane group, has the composition (Ca0.54U4+0.29Fe3+0.17)Σ1.00 [(PO4)0.79(SO4)0.12(CO3)0.07]Σ0.98·1.77H2O. It occurs as a late-stage replacement or matrix to brecciated uraninite (var. pitchblende) associated with sulphides in hydrothermal veins related to Hercynian granites in south-west England. It is hexagonal, space group P6222, with a 6.913 ± 0.003 Å and c 6.422 ± 0.006 Å. The strongest lines of the indexed powder pattern are 2.99 (100), 2.83 (100), 2.14 (50), 1.850 (50), 5.99 (40), 4.37 (40), 3.46 (30). For comparison, new indexed powder data for rhabdophane from Fowey Consols, Cornwall, are included. The mineral is pale yellow to greenish yellow, uniaxial positive with ω 1.644 and ε 1.664, and does not fluoresce in either short-or long-wave ultraviolet light. The habit is acicular or fibrous and no cleavage has been observed. Density (g/cm3) 3.8–4.2 (meas.), 4.18 (calc.).

Map of Localities

Locality Pages

LocalityCitation Details
Wheal Trewavas (Trewavas Cliff Mine), Rinsey, Breage, Cornwall, England, UK
Trequean (Trequeen), Breage, Cornwall, England, UK

Mineral Pages

MineralCitation Details
Tristramite

Mineral Occurrences

LocalityMineral(s)
Wheal Trewavas (Trewavas Cliff Mine), Rinsey, Breage, Cornwall, England, UKⓘ Tristramite
Trequean (Trequeen), Breage, Cornwall, England, UKⓘ Pitchblende, ⓘ Tristramite, ⓘ Uraninite

See Also

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Bowles, J. F. W., Morgan, D. J. (1984) The composition of rhabdophane. Mineralogical Magazine, 48 (346) 146-148 doi:10.1180/minmag.1984.048.346.23
Bowles, J. F. W., Atkin, D., Lambert, J. L. M., Deans, T., Phillips, R. (1983) The chemistry, reflectance, and cell size of the erlichmanite (OsS2)-laurite (RuS2) series. Mineralogical Magazine, 47 (345) 465-471 doi:10.1180/minmag.1983.047.345.07
Rice, C. M., Atkin, D., Bowles, J. F. W., Criddle, A. J. (1979) Nukundamite, a new mineral, and idaite. Mineralogical Magazine, 43 (326) 193-200 doi:10.1180/minmag.1979.043.326.01
BanaĹ›, M., Atkin, D., Bowles, J. F. W., Simpson, P. R. (1979) Definitive data on bohdanowiczite, a new silver bismuth selenide. Mineralogical Magazine, 43 (325) 131-133 doi:10.1180/minmag.1979.043.325.12
Dunn, Pete J., Leavens, Peter B. (1983) Bostwickite, a new calcium manganese silicate hydrate from Franklin, New Jersey. Mineralogical Magazine, 47 (344) 387-389 doi:10.1180/minmag.1983.047.344.16
Russell, J. D., Milodowski, A. E., Fraser, A. R., Clark, D. R. (1983) New IR and XRD data for leadhillite of ideal composition. Mineralogical Magazine, 47 (344) 371-375 doi:10.1180/minmag.1983.047.344.13
Birch, W. D. (1983) Babingtonite, fluorapophyllite and sphene from Harcourt, Victoria, Australia. Mineralogical Magazine, 47 (344) 377-380 doi:10.1180/minmag.1983.047.344.14
Taylor, D. (1983) The Structural behaviour of tetrahedral framework compounds—a review. Part I. Structural behaviour. Mineralogical Magazine, 47 (344) 319-326 doi:10.1180/minmag.1983.047.344.06
Lettsom, W. G. (1885) On Rhabdophane, a New Mineral. Mineralogical Magazine, 6 (2). 105-108 doi:10.1180/minmag.1885.006.2.10
Loughnan, F. C., Roberts, F. Ivor, Lindner, A. W. (1983) Buddingtonite (NH4-feldspar) in the Condor Oilshale Deposit, Queensland, Australia. Mineralogical Magazine, 47 (344) 327-334 doi:10.1180/minmag.1983.047.344.07
Bowles, J. F. W., Jobbins, E. A., Young, B. R. (1980) A re-examination of cheralite. Mineralogical Magazine, 43 (331) 885-888 doi:10.1180/minmag.1980.043.331.11
 
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