| Reference Type | Journal (article/letter/editorial) |
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| Title | Ænigmatite from an Ægirine—Riebeckite granite, Liruei Complex, Nigeria |
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| Journal | Mineralogical Magazine |
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| Authors | Borley, G. D. | Author |
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| Year | 1976 (June) | Volume | 40 |
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| Page(s) | 595-598 | Issue | 314 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_40/40-314-595.pdf+ |
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| DOI | doi:10.1180/minmag.1976.040.314.06Search in ResearchGate |
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| Mindat Ref. ID | 6939 | Long-form Identifier | mindat:1:5:6939:1 |
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| GUID | bace2c63-1086-4532-9b05-1815497d1769 |
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| Full Reference | Borley, G. D. (1976) Ænigmatite from an Ægirine—Riebeckite granite, Liruei Complex, Nigeria. Mineralogical Magazine, 40 (314) 595-598 doi:10.1180/minmag.1976.040.314.06 |
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| Plain Text | Borley, G. D. (1976) Ænigmatite from an Ægirine—Riebeckite granite, Liruei Complex, Nigeria. Mineralogical Magazine, 40 (314) 595-598 doi:10.1180/minmag.1976.040.314.06 |
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| In | (1976, June) Mineralogical Magazine Vol. 40 (314) Mineralogical Society |
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| Abstract/Notes | SummaryÆnigmatite occurs as a trace constituent of the Ægirine-Riebeckite Granite of the Liruei Complex, Younger Granite Province of Nigeria. It is enriched in Ti and Mg and depleted in Si, Al, and Ca relative to many other ænigmatites. Relative to coexisting ægirine and arfvedsonitic riebeckite it is enriched in Ti and depleted in Fe3+. Conditions required for formation of the mineral appear to have been high Ti concentration in a peralkaline magma of low T and fo2. The composition of the Nigerian ænigmatite confirms that there is only limited miscibility between rhönite and aenigmatite although in certain circumstances the two may have a paragenetic relationship. |
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