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Keywords: PyroxeneExsol 0.5mmm.jpg Polarized light microscope image of part of a grain of orthopyroxene containing exsolution lamellae of augite long dimension 0 5 mm Bushveld Intrusion The texture documents a multistage history 1 crystallization of twinned pigeonite followed by exsolution of augite; 2 breakdown of pigeonite to orthopyroxene plus augite; 3 exsolution of augite parallel to the former twin plane of pigeonite own user Omphacite Augite Pigeonite Bushveld Igneous Complex |