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Anorthite, CaAl

By far the most important rock minerals are feldspars, which constitute about 60% of the igneous rock. They are essentially made of three fundamental types of minerals albite NaAlSi30g, orthoclase KAlSi30g, and anorthite CaAl SiO. Their structures are continuous three-dimensional network of [SiO ] and [AlO ] tetrahedrons, interspersed by positively charged sodium (Na(I)), potassium (K(I)), or calcium (Ca(II)). Albite and anorthite mix in arbitrary proportions such mixed minerals are known as plagioclase feldspars. Albite and orthoclase also make mixtures they are alkali feldspars. [Pg.169]

Anorthite CaAl SijO, tricl primitive cell 8 8.177 12377 14.169 93.17° 115.85 ... [Pg.755]

See other pages where Anorthite, CaAl is mentioned: [Pg.370]    [Pg.774]    [Pg.781]    [Pg.787]    [Pg.787]    [Pg.766]    [Pg.773]    [Pg.779]    [Pg.779]    [Pg.280]    [Pg.911]    [Pg.761]    [Pg.761]    [Pg.875]    [Pg.875]    [Pg.812]    [Pg.819]    [Pg.825]    [Pg.825]    [Pg.860]    [Pg.867]    [Pg.873]    [Pg.873]    [Pg.772]    [Pg.778]    [Pg.778]   
See also in sourсe #XX -- [ Pg.2 , Pg.8 , Pg.243 ]



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