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Young, B. R., Hawkes, J. R., Merriman, R. J., Styles, M. T. (1978) Bazirite, BaZrSi3O9, a new mineral from Rockall Island, Inverness-shire, Scotland. Mineralogical Magazine, 42 (321) 35-40 doi:10.1180/minmag.1978.042.321.04

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Reference TypeJournal (article/letter/editorial)
TitleBazirite, BaZrSi3O9, a new mineral from Rockall Island, Inverness-shire, Scotland
JournalMineralogical MagazineISSN0026-461X
AuthorsYoung, B. R.Author
Hawkes, J. R.Author
Merriman, R. J.Author
Styles, M. T.Author
Year1978 (March)Volume42
Issue321
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_42/42-321-35.pdf+
DOIdoi:10.1180/minmag.1978.042.321.04Search in ResearchGate
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Mindat Ref. ID2855Long-form Identifiermindat:1:5:2855:8
GUID0
Full ReferenceYoung, B. R., Hawkes, J. R., Merriman, R. J., Styles, M. T. (1978) Bazirite, BaZrSi3O9, a new mineral from Rockall Island, Inverness-shire, Scotland. Mineralogical Magazine, 42 (321) 35-40 doi:10.1180/minmag.1978.042.321.04
Plain TextYoung, B. R., Hawkes, J. R., Merriman, R. J., Styles, M. T. (1978) Bazirite, BaZrSi3O9, a new mineral from Rockall Island, Inverness-shire, Scotland. Mineralogical Magazine, 42 (321) 35-40 doi:10.1180/minmag.1978.042.321.04
In(1978, March) Mineralogical Magazine Vol. 42 (321) Mineralogical Society
Abstract/NotesSummaryBazirite, BaZrSi3O9, is one of several late-stage interstitial minerals present in the aegirine-riebeckite granite of Rockall Island. Crystals are hexagonal, probably ¯6m2, colourless, chiefly as anhedral grains. Only forms noted {10¯10} and probably {10¯14}, cleavage {0001} and probably {10¯14}. ‘Low’ and ‘high’ titanium varieties with respective mean compositions: SiO2 39·71%, ZrO2 26·38%, BaO 33·69%, TiO2 0·17%, SnO2 0·06% and SiO2 39·59%, ZrO2 26·12%, BaO 34·12%, TiO2 0·51%, SnO2 0·11%. Low and high refractive index types exist; uniaxial positive with ω = 1·6751±0·0003. ɛ = 1·6850±0·0003 and ω = 1·6813±0·0003, ɛ = 1·691 (deduced); probably due to differences in titanium content. Fluorescence (2537 Å), moderately strong, pale whitish blue. Space group almost certainly P¯6c2. Cell dimensions: low R.I. variety, a = 6·7690±0·0005 Å, c = 10·020±0·001 Å; high R.I. variety, a = 6·7662± 0·0005 Å, c = 10·158±0·0010 Å. Strongest lines are 3·80 Å (100), 2·800 (100), 5·85 (35), 3·38 (35), Z = 2. Dcalc = 3·82. Related minerals, benitoite and pabstite.

Map of Localities

Locality Pages

LocalityCitation Details
Rockall Island, Outer Hebrides, Scotland, UK
Apex Ridge, Rockall Island, Outer Hebrides, Scotland, UK

Mineral Pages

MineralCitation Details
Bazirite

Mineral Occurrences

LocalityMineral(s)
Rockall Island, Outer Hebrides, Scotland, UKⓘ Aegirine, ⓘ Albite, ⓘ Bazirite, ⓘ Cristobalite, ⓘ Elpidite, ⓘ Eucolite, ⓘ Feldspar Group, ⓘ Granite, ⓘ Leucophosphite, ⓘ Magnetite, ⓘ Microcline, ⓘ Monazite Group, ⓘ Nephelinite, ⓘ Perthite, ⓘ Phonolite, ⓘ Pyrochlore Group, ⓘ Pyroxene Group, ⓘ Quartz, ⓘ Riebeckite, ⓘ Rockallite, ⓘ Xenotime, ⓘ Zircon
Apex Ridge, Rockall Island, Outer Hebrides, Scotland, UKⓘ Aegirine, ⓘ Albite, ⓘ Apatite, ⓘ Baryte, ⓘ Cristobalite, ⓘ Elpidite, ⓘ Eudialyte, ⓘ Leucophosphite, ⓘ Magnetite, ⓘ Monazite Group, ⓘ Peralkaline alkali-feldspar-granite, ⓘ Pyrochlore Group, ⓘ Quartz, ⓘ Riebeckite, ⓘ Titanite, ⓘ Xenotime

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Nicholson, Keith (1987) Rhodochrosite from Islay, Argyllshire and Dalroy, Inverness-shire, Scotland. Mineralogical Magazine, 51 (363) 677-680 doi:10.1180/minmag.1987.051.363.07
Wilson, M. J., Russell, J. D., Tait, J. M., Clark, D. R., Fraser, A. R. (1984) Macaulayite, a new mineral from North-East Scotland. Mineralogical Magazine, 48 (346) 127-129 doi:10.1180/minmag.1984.048.346.17
Thorpe, R. S. (1978) The parental basaltic magma of granites from the Isle of Skye, NW. Scotland. Mineralogical Magazine, 42 (321) 157-158 doi:10.1180/minmag.1978.042.321.30
Strens, R. G. J., Freer, Robert (1978) The physical basis of mineral optics I. Classical theory. Mineralogical Magazine, 42 (321) 19-30 doi:10.1180/minmag.1978.042.321.02
Briggs, R. M. (1978) Ferrocarpholite associated with low-grade blueschists, northern New Caledonia. Mineralogical Magazine, 42 (321) 147 doi:10.1180/minmag.1978.042.321.25
Styles, M. T., Young, B. R. (1983) Fluocerite and its alteration products from the Afu Hills, Nigeria. Mineralogical Magazine, 47 (342) 41-46 doi:10.1180/minmag.1983.047.342.07
Harding, R. R., Merriman, R. J., Nancarrow, P. H. A. (1982) A note on the occurrence of chevkinite, allanite, and zirkelite on St. Kilda, Scotland. Mineralogical Magazine, 46 (341) 445-448 doi:10.1180/minmag.1982.046.341.06
Parker, R. J. (1978) Quantitative determination of analcime in pumice samples by X-ray diffraction. Mineralogical Magazine, 42 (321) 103-106 doi:10.1180/minmag.1978.042.321.15
Macadam, W. Ivison (1886) On the Chemical Composition of the Mineral Bruiachite, found by Mr. Thomas D. Wallace, of Inverness, at Loch Bhruithaich, Inverness-shire. Mineralogical Magazine and Journal of the Mineralogical Society, 7 (32) 42 doi:10.1180/minmag.1886.007.32.09
Bridge, P. J., Pryce, M. W., Clarke, R. M., Costello, M. B. (1978) Sampleite from Jingemia Cave, Western Australia. Mineralogical Magazine, 42 (323) 369-371 doi:10.1180/minmag.1978.042.323.07
Plimer, I. R., Ashley, P. M. (1978) Manganoan Ilvaite from Broken Hill, N.S.W. and Ban Ban, Queensland, Australia. Mineralogical Magazine, 42 (321) 85-88 doi:10.1180/minmag.1978.042.321.11
 
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