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Zwaan, P. C., Arps, C. E. S., Zwaan, P. C., Arps, C. E. S., de Grave, E. (1989) Vochtenite, (Fe2+,Mg)Fe3+[UO2/PO4]4(OH)·12–13H2O, a new uranyl phosphate mineral from Wheal Basset, Redruth, Cornwall, England. Mineralogical Magazine, 53 (372) 473-478 doi:10.1180/minmag.1989.053.372.07

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Reference TypeJournal (article/letter/editorial)
TitleVochtenite, (Fe2+,Mg)Fe3+[UO2/PO4]4(OH)·12–13H2O, a new uranyl phosphate mineral from Wheal Basset, Redruth, Cornwall, England
JournalMineralogical MagazineISSN0026-461X
AuthorsZwaan, P. C.Author
Arps, C. E. S.Author
de Grave, E.Author
Zwaan, P. C.Author
Arps, C. E. S.Author
de Grave, E.Author
Year1989 (September)Volume53
Issue372
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_53/53-372-473.pdf+
DOIdoi:10.1180/minmag.1989.053.372.07Search in ResearchGate
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Mindat Ref. ID1532Long-form Identifiermindat:1:5:1532:9
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Full ReferenceZwaan, P. C., Arps, C. E. S., Zwaan, P. C., Arps, C. E. S., de Grave, E. (1989) Vochtenite, (Fe2+,Mg)Fe3+[UO2/PO4]4(OH)·12–13H2O, a new uranyl phosphate mineral from Wheal Basset, Redruth, Cornwall, England. Mineralogical Magazine, 53 (372) 473-478 doi:10.1180/minmag.1989.053.372.07
Plain TextZwaan, P. C., Arps, C. E. S., Zwaan, P. C., Arps, C. E. S., de Grave, E. (1989) Vochtenite, (Fe2+,Mg)Fe3+[UO2/PO4]4(OH)·12–13H2O, a new uranyl phosphate mineral from Wheal Basset, Redruth, Cornwall, England. Mineralogical Magazine, 53 (372) 473-478 doi:10.1180/minmag.1989.053.372.07
In(1989, September) Mineralogical Magazine Vol. 53 (372) Mineralogical Society
Abstract/NotesVochtenite, a new mineral from the Basset Mine, southeast of Camborne in Cornwall, England, is a ferrous-ferric magnesium-bearing hydroxy uranyl phosphate mineral. It is monoclinic with a = 12.606, b = 19.990, c = 9.990 Å, β = 102.31° Z = 3; the ideal formula is:The strongest lines in the X-ray powder diffraction pattern are: 9.998(100)(020), 4.999(30)(040), 4.892(45)(002), 3.475(70)(311), 3.333(50)(060), 3.087(40)(232), and . Vochtenite is brown in colour with a bronzy lustre and is non-fluorescent. Mohs hardness is 2.5 and the density (calc.) = 3.663 g/cm3. There is a prominent (010) cleavage. Vochtenite is optical biaxial negative, 2V (calc.) = 89(3)° its dispersion is indiscernible. Refractive indices are α = 1.575(2), β = 1.589(2), γ = 1.603(2), and the pleochroism is very weak. Orientation X(α)∥b is perpendicular to (010) and Z(γ)∧c is small. The mineral occurs as subparallel (0.5–1.0 mm) crystal aggregates with a pseudo-quadratic outline. The mineral is named vochtenite after Prof. Dr. Ing. R. F. C. Vochten of the State University of Antwerpen, Belgium.

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Mineral Pages

MineralCitation Details
Vochtenite

Mineral Occurrences

LocalityMineral(s)
Wheal Basset, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UKⓘ Arsenopyrite, ⓘ Bassetite, ⓘ Chalcocite, ⓘ Vochtenite, ⓘ Wolframite Group

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Zwaan, P.C., Arps, C.E.S., De Grav, E. (1989) Vochtenite, (Fe2+,Mg)Fe3[UO2/PO414(OH).12-13H20, a new uranyl phosphate mineral from Wheal Basset, Redruth, Cornwall, England. Mineralogical Magazine: 53(372): 473-478.
Grey, I. E., Keck, E., Mumme, W. G., Pring, A., Macrae, C. M., Glenn, A. M., Davidson, C. J., Shanks, F. L., Mills, S. J. (2016) Kummerite, Mn2+Fe3+Al(PO4)2(OH)2·8H2O, a new laueite-group mineral from the Hagendorf Süd pegmatite, Bavaria, with ordering of Al and Fe3+. Mineralogical Magazine, 80 (7) 1243-1254 doi:10.1180/minmag.2016.080.061
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Sejkora, J., Grey, I. E., Kampf, A. R., Price, J. R., Čejka, J. (2016) Tvrdýite, Fe2+Fe32+Al3(PO4)4(OH)5(OH2)4·2H2O, a new phosphate mineral from Krásno near Horní Slavkov, Czech Republic. Mineralogical Magazine, 80 (6) 1077-1088 doi:10.1180/minmag.2016.080.045
Clark, A. M., Fejer, E. E., Cressey, G., Tandy, P. C. (1988) Ashoverite, a New Mineral, and Other Polymorphs of Zn(OH)2 from Milltown, Ashover, Derbyshire. Mineralogical Magazine, 52 (368) 699-702 doi:10.1180/minmag.1988.052.368.14
Mills, S. J., Groat, L. A., Wilson, S. A., Birch, W. D., Whitfield, P. S., Raudsepp, M. (2008) Angastonite, CaMgAl2(PO4)2(OH)4·7H2O: a new phosphate mineral from Angaston, South Australia. Mineralogical Magazine, 72 (5) 1011-1020 doi:10.1180/minmag.2008.072.5.1011
Grey, I. E., Keck, E., Mumme, W. G., Pring, A., Macrae, C. M., Gable, R. W., Price, J. R. (2015) Flurlite, Zn3Mn2+Fe3+(PO4)3(OH)2·9H2O, a new mineral from the Hagendorf Süd pegmatite, Bavaria, with a schoonerite-related structure. Mineralogical Magazine, 79 (5) 1175-1184 doi:10.1180/minmag.2015.079.5.11
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Sokolova, E., Abdu, Y., Hawthorne, F. C., Stepanov, A. V., Bekenova, G. K., Kotel’nikov, P. E. (2009) Cámaraite, Ba3NaTi4(Fe2+,Mn)8(Si2O7)4O4(OH,F)7. I. A new Ti-silicate mineral from the Verkhnee Espe Deposit, Akjailyautas Mountains, Kazakhstan. Mineralogical Magazine, 73 (5) 847-854 doi:10.1180/minmag.2009.073.5.847
Kanis, Jan, Arps, Charles E.S., Zwaan, Pieter C. (1991) ‘Machingwe’: A new emerald deposit in Zimbabwe. The Journal of Gemmology, 22 (5) 264-272 doi:10.15506/jog.1991.22.5.264
 
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