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Pryce, M. W. (1971) Holtite: a new mineral allied to dumortierite. Mineralogical Magazine, 38 (293) 21-25 doi:10.1180/minmag.1971.038.293.02

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Reference TypeJournal (article/letter/editorial)
TitleHoltite: a new mineral allied to dumortierite
JournalMineralogical Magazine
AuthorsPryce, M. W.Author
Year1971 (March)Volume38
Issue293
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_38/38-293-21.pdf+
DOIdoi:10.1180/minmag.1971.038.293.02Search in ResearchGate
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Mindat Ref. ID6427Long-form Identifiermindat:1:5:6427:3
GUID0
Full ReferencePryce, M. W. (1971) Holtite: a new mineral allied to dumortierite. Mineralogical Magazine, 38 (293) 21-25 doi:10.1180/minmag.1971.038.293.02
Plain TextPryce, M. W. (1971) Holtite: a new mineral allied to dumortierite. Mineralogical Magazine, 38 (293) 21-25 doi:10.1180/minmag.1971.038.293.02
In(1971, March) Mineralogical Magazine Vol. 38 (293) Mineralogical Society
Abstract/NotesSummaryHoltite, a new mineral allied to dumortierite, occurred as pebbles with stibiotantalite and tantalite on an alluvial tin lease near Greenbushes, Western Australia, and is named after the late H. E. Holt, Prime Minister of Australia.The mineral is orthorhombic with a 11·905 Å, b 20·355 Å, c 4·690 Å, space group Pmcn, weak supercell 2a, 2b, c developed. Crystals are elongated along c, D 3·90 ± 0·02, hardness 8½, fluorescent. Optical properties α 1·743−1·746, mainly yellow, ‖ [001], β 1·756−1·759, colourless, γ 1·758−1·761, colourless, 2Vα 49−55°, r < v. X-ray powder data are given.Chemical analysis gave SiO2 20·30, Sb2O5 4·61, Al2O3 46·43, Ta2O5 11·24, Nb2O5 0·76, Fe2O3 0·27, MnO 0·05, TiO2 0·09, BeO 0·05, B2O3 1·82, Sb2O3 13·89, H2O+ 0·38, H2O− 0·08, sum 99·97%. On a water-free basis the unit cell contains Al24·5Sb2·56‴Ta1·36Sb0·76vNb0·16Fe0·10‴Be0·05Ti0·03Mn0·02B1·40‴Si9·09O66·85. Compared with dumortierite, 4[(A1,Fe)7BSi3O18] or 4 (X11O18), the holtite unit cell contains approximately 4(X10O17).Type material is preserved at the Government Chemical Laboratories, Perth, Western Australia.

Map of Localities

Locality Pages

LocalityCitation Details
Greenbushes Sn placers, Greenbushes Tinfield, Bridgetown-Greenbushes Shire, Western Australia, Australia

Mineral Pages

MineralCitation Details
Holtite

Mineral Occurrences

LocalityMineral(s)
Greenbushes Sn placers, Greenbushes Tinfield, Bridgetown-Greenbushes Shire, Western Australia, Australiaⓘ Holtite, ⓘ Microlite Group, ⓘ Quartz, ⓘ Stibiotantalite, ⓘ Tourmaline

See Also

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Sabzehei, M. (1971) Dumortierite from Iran: a first record. Mineralogical Magazine, 38 (296) 526-527 doi:10.1180/minmag.1971.038.296.19
International Mineralogical Association (1971) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine, 38 (293). 102-105 doi:10.1180/minmag.1971.038.293.14
Pryce, M. W. (1972) Biphosphammite: a second occurrence. Mineralogical Magazine, 38 (300) 965-967 doi:10.1180/minmag.1972.038.300.08
Pieczka, A., Evans, R. J., Grew, E. S., Groat, L. A., Ma, C., Rossman, G. R. (2013) The dumortierite supergroup. I. A new nomenclature for the dumortierite and holtite groups. Mineralogical Magazine, 77 (6) 2825-2839 doi:10.1180/minmag.2013.077.6.09
Bridge, P. J., Pryce, M. W. (1974) Clinobisvanite, monoclinic BiVO4, a new mineral from Yinnietharra, Western Australia. Mineralogical Magazine, 39 (308) 847-849 doi:10.1180/minmag.1974.039.308.03
Hoskins, B. F., Mumme, W. G., Pryce, M. W. (1989) Holtite, (Si2.25Sb0.75)B [Al6(Al0.43Ta0.27□0.30) O15 (O,OH)2.25]: crystal structure and crystal chemistry. Mineralogical Magazine, 53 (372) 457-463 doi:10.1180/minmag.1989.053.372.05
Pryce, M. W. (1972) Calcium sulphosilicate in lime-kiln wall coating. Mineralogical Magazine, 38 (300) 968-971 doi:10.1180/minmag.1972.038.300.09
Cooper, A. F. (1971) Piemontite schists from Haast River, New Zealand. Mineralogical Magazine, 38 (293) 64-71 doi:10.1180/minmag.1971.038.293.08
Groves, A. W. (1928) The identification of dumortierite as grains; dumortierite in Cornish granite. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (121). 489-492 doi:10.1180/minmag.1928.021.121.04
Pieczka, A., Grew, E. S., Groat, L. A., Evans, R. J. (2011) Holtite and dumortierite from the Szklary Pegmatite, Lower Silesia, Poland. Mineralogical Magazine, 75 (2) 303-315 doi:10.1180/minmag.2011.075.2.303
Pryce, M. W., Just, J. (1974) Glaukosphaerite: A new nickel analogue of rosasite. Mineralogical Magazine, 39 (307) 737-743 doi:10.1180/minmag.1974.039.307.01
 
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