Figure F21. Photomicrograph of plagioclase-clinopyroxene glomerocrysts and olivine phenocryst in aphanitic groundmass in Unit 5 (Sample 197-1206A-15R-1 [Piece 7A, 72-74 cm]) (cross-polarized light; field of view = 5 mm; photomicrograph 1206A-314).