Fig. 2: Abundance and zoning of olivine in kimberlites.
From: Diamond preservation in the lithospheric mantle recorded by olivine in kimberlites

a Thin section photomicrograph from the Internationalnaya kimberlite (Siberia) and b, c back-scattered electron (BSE) images of representative zoned olivine grains. Note the abundance and size-shape variability of olivine. The sample also includes orthopyroxene (‘opx’) and crustal xenocrysts.