| Reference Type | Journal (article/letter/editorial) |
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| Title | The beryls of the Rosses district, Donegal |
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| Journal | Mineralogical Magazine |
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| Authors | Hall, A. | Author |
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| Walsh, J. N. | Author |
| Year | 1971 (September) | Volume | 38 |
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| Issue | 295 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_38/38-295-328.pdf+ |
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| DOI | doi:10.1180/minmag.1971.038.295.07Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6480 | Long-form Identifier | mindat:1:5:6480:8 |
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| GUID | 0 |
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| Full Reference | Hall, A., Walsh, J. N. (1971) The beryls of the Rosses district, Donegal. Mineralogical Magazine, 38 (295) 328-334 doi:10.1180/minmag.1971.038.295.07 |
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| Plain Text | Hall, A., Walsh, J. N. (1971) The beryls of the Rosses district, Donegal. Mineralogical Magazine, 38 (295) 328-334 doi:10.1180/minmag.1971.038.295.07 |
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| In | (1971, September) Mineralogical Magazine Vol. 38 (295) Mineralogical Society |
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| Abstract/Notes | SummaryChemical analyses and physical properties are given for six samples of beryl from greisenized granites, pegmatites, and beryl-quartz veins in the Rosses granite complex. The beryls studied were all very similar in composition and contain significant amounts of alkali elements and water in addition to the constituents represented by the formula Be3Al2Si6O18. Calculation of the empirical unit cell contents indicates that most of the H2O+ is present in the mineral as water molecules. The effects of these extra constituents on the physical properties are discussed, and it is suggested that the variation in refractive indices displayed by beryl is to a large extent attributable to the variable water content. |
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