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Güven, N. (1974) Formation of laths in fine-grained micas and its relationship to stacking mechanism. Mineralogical Magazine, 39 (307) 788-792 doi:10.1180/minmag.1974.039.307.05

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Reference TypeJournal (article/letter/editorial)
TitleFormation of laths in fine-grained micas and its relationship to stacking mechanism
JournalMineralogical Magazine
AuthorsGüven, N.Author
Year1974 (September)Volume39
Issue307
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_39/39-307-788.pdf+
DOIdoi:10.1180/minmag.1974.039.307.05Search in ResearchGate
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Mindat Ref. ID6780Long-form Identifiermindat:1:5:6780:9
GUID0
Full ReferenceGüven, N. (1974) Formation of laths in fine-grained micas and its relationship to stacking mechanism. Mineralogical Magazine, 39 (307) 788-792 doi:10.1180/minmag.1974.039.307.05
Plain TextGüven, N. (1974) Formation of laths in fine-grained micas and its relationship to stacking mechanism. Mineralogical Magazine, 39 (307) 788-792 doi:10.1180/minmag.1974.039.307.05
In(1974, September) Mineralogical Magazine Vol. 39 (307) Mineralogical Society
Abstract/NotesSummaryTransmission electron images of fine-grained micas from various clay deposits exhibit lath-shaped units arranged in modes similar to the stacking of layers in different mica polymorphs. Micas in a Georgia bentonite display two sets of parallel laths intersecting at an angle of 120°. Selected area electron diffraction (SAD) of these micas gives a sharp spot pattern indicating a perfect registry between the lattices of individual laths. Furthermore, the SAD pattern has an intensity distribution similar to that of a 2M1 dioctahedral mica. Another mica in an India bentonite shows one set of parallel laths with an intensity distribution expected from a IM biotite. Some of the micas in the Marblehead illite exhibit three sets of parallel laths in a trigonal arrangement similar to the stacking in 3T mica.


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