On the cause of internal optical scatter in plagioclase, and the occurrence of lamellar albite-Ala B twinning

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ID: 305783
1965
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Abstract
The internal optical scatter in plagioclase is attributed mainly to composition planes not following the 9ideal9 crystallographic directions. The lamellar albite-Ala B twins reported by various authors in the composition range around 30 percent anorthiteare probably ordinary albite twins. The misinterpretation is due to the coincidence of X and \[100\] in plagioclase of that composition. Determination of the optical orientation of plagioclase by construction of twinning axes is recommended.
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openalex_W2314231975 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors A. C. Tobi
Journal american journal of science
Year 1965
DOI
10.2475/ajs.263.8.712
URL
https://doi.org/10.2475/ajs.263.8.712
Keywords Keywords not found

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