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Vol 186
Pages:
38-40
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RUS
Research article
Geology

Spacing of lattice in labradorite and interference model of iridescent

Authors:
A. P. Simakov
About authors
  • Post-graduate student Saint Petersburg State Mining Institute (Technical University)
Date submitted:
2009-08-10
Date accepted:
2009-10-15
Date published:
2010-02-01

Abstract

Spacing of lattice for non-iridescent labradorite, blue-iridescent labradorite, green-iridescent labradorite and red-iridescent labradorite were determined with scanning probe electron microscope. Lattice spacing increases the dynamical trend for different kinds of labradorite, line non-iridescent labradorite (107,5 ± 10 nm), blue-iridescent labradorite (150 ± 10 nm), green-iridescent labradorite (196 ± 10 nm), red-iridescent (231 ± 10 nm). This trend let is state iridescent of these samples to be caused by interference of secondary order.

Keywords:
iridescent interference lamellies labradorite solid solution extraction
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References

  1. Бетехтин А.Г. Курс минералогии. М.: Государственное научно-техническое издательство литературы по геологии и охране недр, 1951. 543 с.
  2. Крамаренко Н.К. Фазовый состав, пластинчатое строение и иризация плагиоклазов. Киев: Наукова думка, 1975. 108 с.
  3. Путилин Э.С. Оптические покрытия. СПб: Изд-во СПбГУ ИТМО, 2005. 201 с.
  4. Розенберг Г.В. Оптика тонкослойных покpытий. М.: Физматгиз, 1958. 392 с.

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