Composition of the plagioclase minerals

Composition of the plagioclase minerals

Table
Composition of the plagioclase minerals
mineral composition (in percent)
albite 10090 Ab
    010 An
oligoclase   9070 Ab
  1030 An
andesine   7050 Ab
  3050 An
labradorite   5030 Ab
  5070 An
bytownite   3010 Ab
  7090 An
anorthite   100 Ab
  90100 An
See as table:

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  • plagioclase — plagioclastic /play jee euh klas tik/, adj. /play jee euh klays /, n. any of the feldspar minerals varying in composition from acidic albite, NaAlSi3O8, to basic anorthite, CaAl2Si2O8, found in most igneous rocks: shows twinning striations on… …   Universalium

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  • plagioclase — pla•gi•o•clase [[t]ˈpleɪ dʒi əˌkleɪs[/t]] n. mir any of the feldspar minerals varying in composition from albite, NaAlSi3O8, to anorthite, CaAl2Si2O8 • Etymology: 1865–70 pla gi•o•clas′tic ˈklæs tɪk adj …   From formal English to slang

  • plagioclase — /ˈpleɪdʒioʊˌkleɪz / (say playjeeoh.klayz), / ˌkleɪs/ (say .klays) noun any of the felspar minerals varying in composition from NaAlSi3O8 to CaAl2Si2O8, important constituents of many igneous rocks. {Greek plagio(s) oblique + klasis fracture} …  

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