| Reference Type | Journal (article/letter/editorial) |
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| Title | Bazirite, BaZrSi3O9, a new mineral from Rockall Island, Inverness-shire, Scotland |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Young, B. R. | Author |
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| Hawkes, J. R. | Author |
| Merriman, R. J. | Author |
| Styles, M. T. | Author |
| Year | 1978 (March) | Volume | 42 |
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| Page(s) | 35-40 | Issue | 321 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_42/42-321-35.pdf+ |
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| DOI | doi:10.1180/minmag.1978.042.321.04Search in ResearchGate |
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| Mindat Ref. ID | 2855 | Long-form Identifier | mindat:1:5:2855:8 |
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| GUID | 567de31d-c30d-4a53-b7d8-1f7201174483 |
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| Full Reference | 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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| Plain Text | 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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| In | (1978, March) Mineralogical Magazine Vol. 42 (321) Mineralogical Society |
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| Abstract/Notes | SummaryBazirite, 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. |
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