| Reference Type | Journal (article/letter/editorial) |
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| Title | On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Knorring, Oleg von | Author |
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| Condliffe, Eric | Author |
| Year | 1984 (September) | Volume | 48 |
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| Issue | 348 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_48/48-348-443.pdf+ |
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| DOI | doi:10.1180/minmag.1984.048.348.16Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3652 | Long-form Identifier | mindat:1:5:3652:2 |
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| GUID | 0 |
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| Full Reference | Knorring, Oleg von, Condliffe, Eric (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48 (348) 443-448 doi:10.1180/minmag.1984.048.348.16 |
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| Plain Text | Knorring, Oleg von, Condliffe, Eric (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48 (348) 443-448 doi:10.1180/minmag.1984.048.348.16 |
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| In | (1984, September) Mineralogical Magazine Vol. 48 (348) Mineralogical Society |
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| Abstract/Notes | Abstract
A number of rare-element minerals from the Meldon aplite are described, e.g. native arsenic and antimony, arsenolite, stibiconite, and various niobium-tantalum minerals. Some of the minerals are new to the occurrence and some may be new to the British Isles. Particular attention has been paid to the Nb-Ta minerals and a large number of electron-microprobe analyses for manganocolumbite, manganotantalite, and microlite are presented. Examination of numerous, minute crystals and fragments of columbite-tantalite revealed a complex oscillatory zoning, indicating a slow rate of cooling and perhaps incomplete miscibility of the isomorphous columbite-tantalite series. |
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