| Reference Type | Journal (article/letter/editorial) |
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| Title | Astrophyllite from Kangerdlugssuaq, East Greenland |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Layne, Graham D. | Author |
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| Rucklidge, John C. | Author |
| Kent Brooks, C. | Author |
| Year | 1982 | Volume | 45 |
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| Issue | 337 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_45/45-337-149.pdf+ |
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| DOI | doi:10.1180/minmag.1982.045.337.17Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3327 | Long-form Identifier | mindat:1:5:3327:9 |
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| GUID | 0 |
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| Full Reference | Layne, Graham D., Rucklidge, John C., Kent Brooks, C. (1982) Astrophyllite from Kangerdlugssuaq, East Greenland. Mineralogical Magazine, 45 (337) 149-156 doi:10.1180/minmag.1982.045.337.17 |
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| Plain Text | Layne, Graham D., Rucklidge, John C., Kent Brooks, C. (1982) Astrophyllite from Kangerdlugssuaq, East Greenland. Mineralogical Magazine, 45 (337) 149-156 doi:10.1180/minmag.1982.045.337.17 |
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| In | (1982) Mineralogical Magazine Vol. 45 (337) Mineralogical Society |
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| Abstract/Notes | AbstractAstrophyllite has been found in alkalic pegmatite dykes on the two sides of Kangerdlugssuaq fjord. At the eastern locality, Kraemers Island, the dyke is silica oversaturated and the astrophyllite occurs in a broad tabular crystal habit. The dyke at the western locality, Bagnaesset, is silica undersaturated and the astrophyllite occurs in elongated prisms of acicular habit. Electron probe analyses of the crystals of the two habits have shown systematic chemical differences which not only relate to Mn and Ti compositional variations, but also reveal departures from ideal stoichiometry in varying degrees. Based on this latter feature a model involving polysomatism has been constructed which may explain the differences in crystal habit. |
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