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Differentiate between felsic and mafic rock-forming minerals?

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Question added by Mohamed Mattash , Head of Hadramawt consulting center for geological studies and researches , MEMC, Hadramawt consulting center, University of Hadramawt
Date Posted: 2014/12/22
karima ettaoussi
by karima ettaoussi , Enseignante de Français , etat

Mafic is used for silicate minerals, magmas, and rocks which are relatively high in the heavier elements. 

Felsic, is used for silicate minerals, magmas, and rocks which have a lower percentage of the heavier elements, and are correspondingly enriched in the lighter elements.

Crystalline form Almkhaddh chemical composition of the metal minerals Nvsi

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