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Kempe, D. R. C. (1966) A note on the 01 spacing of some lime-rich alkali feldspars from Kangerdlugssuaq, East Greenland. Mineralogical Magazine and Journal of the Mineralogical Society, 35 (273) 704-714 doi:10.1180/minmag.1966.035.273.05

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Reference TypeJournal (article/letter/editorial)
TitleA note on the 01 spacing of some lime-rich alkali feldspars from Kangerdlugssuaq, East Greenland
JournalMineralogical Magazine and Journal of the Mineralogical Society
AuthorsKempe, D. R. C.Author
Year1966 (March)Volume35
Issue273
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_35/35-273-704.pdf+
DOIdoi:10.1180/minmag.1966.035.273.05Search in ResearchGate
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Mindat Ref. ID5946Long-form Identifiermindat:1:5:5946:0
GUID0
Full ReferenceKempe, D. R. C. (1966) A note on the 01 spacing of some lime-rich alkali feldspars from Kangerdlugssuaq, East Greenland. Mineralogical Magazine and Journal of the Mineralogical Society, 35 (273) 704-714 doi:10.1180/minmag.1966.035.273.05
Plain TextKempe, D. R. C. (1966) A note on the 01 spacing of some lime-rich alkali feldspars from Kangerdlugssuaq, East Greenland. Mineralogical Magazine and Journal of the Mineralogical Society, 35 (273) 704-714 doi:10.1180/minmag.1966.035.273.05
In(1965) Mineralogical Magazine Vol. 35 (273) Mineralogical Society
Abstract/NotesSummaryThe values of 2θ 01 for some homogenized lime-rich fine microperthites from the Kangerdlugssuaq alkaline intrusion, East Greenland, are investigated and found to be consistently high when compared with the values used in the standard curves for estimating the Or content of alkali feldspars. This deviation, which is approximately proportional to anorthite content, results in anomalously low Or percentages being obtained and is ascribed to a distortion of the structure due to the unusually high calcium content of the microperthites.


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