Figure F15. Quenched pillow margin containing spherulites that have been highlighted by alteration in Sample 192-1187A-7R-6 (Piece 2, 66-70 cm). Elongate groundmass olivine, acicular plagioclase (white, elongate parts of the spherulites), and glomerocrysts of euhedral olivine are present (field of view = 5.5 mm; plane-polarized light; photomicrograph ID# 1187A_244).