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- Undulose_extinction abstract "Undulose extinction or undulatory extinction is a geological term referring to the type of extinction that occurs in certain minerals when examined in thin section under cross polarized light. As the microscope stage is rotated, individual mineral grains appear black when the polarization due to the mineral prevents any light from passing through. If a mineral is deformed plastically by dislocation processes without recovery, strain builds up within the crystal lattice causing it to warp. This means that different parts of a crystal reach extinction at slightly different angles, giving the crystal an irregular, mottled look.Undulose extinction is very common in quartz, so much so that it is often used as a diagnostic feature of that mineral, and feldspar of various sorts, but is possible in almost any mineral.The presence of undulose extinction may help to infer that a crystal grew before a deformation event. However, some minerals acquire undulose extinction easily and even under the effect of minor or local deformations.".
- Undulose_extinction thumbnail Quartz-zhaseni.gif?width=300.
- Undulose_extinction wikiPageID "2914772".
- Undulose_extinction wikiPageLength "1707".
- Undulose_extinction wikiPageOutDegree "14".
- Undulose_extinction wikiPageRevisionID "542422523".
- Undulose_extinction wikiPageWikiLink Category:Optical_mineralogy.
- Undulose_extinction wikiPageWikiLink Crystal.
- Undulose_extinction wikiPageWikiLink Deformation_(engineering).
- Undulose_extinction wikiPageWikiLink Extinction_(optical_mineralogy).
- Undulose_extinction wikiPageWikiLink Feldspar.
- Undulose_extinction wikiPageWikiLink Geology.
- Undulose_extinction wikiPageWikiLink Microscope.
- Undulose_extinction wikiPageWikiLink Mineral.
- Undulose_extinction wikiPageWikiLink Polarization_(waves).
- Undulose_extinction wikiPageWikiLink Quartz.
- Undulose_extinction wikiPageWikiLink Recovery_(metallurgy).
- Undulose_extinction wikiPageWikiLink Thin_section.
- Undulose_extinction wikiPageWikiLink File:Quartz-micro2.jpg.
- Undulose_extinction wikiPageWikiLink File:Quartz-zhaseni.gif.
- Undulose_extinction wikiPageWikiLinkText "Undulose extinction".
- Undulose_extinction wikiPageWikiLinkText "undulatory".
- Undulose_extinction wikiPageWikiLinkText "undulose extinction".
- Undulose_extinction wikiPageWikiLinkText "undulose".
- Undulose_extinction wikiPageUsesTemplate Template:Commons.
- Undulose_extinction wikiPageUsesTemplate Template:Petrology-stub.
- Undulose_extinction wikiPageUsesTemplate Template:Reflist.
- Undulose_extinction subject Category:Optical_mineralogy.
- Undulose_extinction hypernym Term.
- Undulose_extinction type Redirect.
- Undulose_extinction comment "Undulose extinction or undulatory extinction is a geological term referring to the type of extinction that occurs in certain minerals when examined in thin section under cross polarized light. As the microscope stage is rotated, individual mineral grains appear black when the polarization due to the mineral prevents any light from passing through. If a mineral is deformed plastically by dislocation processes without recovery, strain builds up within the crystal lattice causing it to warp.".
- Undulose_extinction label "Undulose extinction".
- Undulose_extinction sameAs Q844389.
- Undulose_extinction sameAs Undulózní_zhášení.
- Undulose_extinction sameAs Undulöse_Auslöschung.
- Undulose_extinction sameAs Extinción_ondulante.
- Undulose_extinction sameAs m.08c8c7.
- Undulose_extinction sameAs Q844389.
- Undulose_extinction wasDerivedFrom Undulose_extinction?oldid=542422523.
- Undulose_extinction depiction Quartz-zhaseni.gif.
- Undulose_extinction isPrimaryTopicOf Undulose_extinction.