A stunning mylonitic peridotite xenolith from Udachnaya kimberlite
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A stunning mylonitic peridotite xenolith from Udachnaya kimberlite

by Bernardo Cesare, Department of Geosciences, University of Padova, Padova, Italy

As in the title...
Porphyroclasts of pyroxene in a recrystallized matrix of olivine
Polychromatic polarization (Shribak, 2015).
Width of view c. 3 mm.
Thanks Federico Casetta for kindly providing the thin section.