"Holly-leaf" spinel pattern in mantle lherzolite xenolith

Click on image to enlarge          Photo © Daniel R. Snyder

Light green olivine , olive-green enstatite (top; bottom center), and a spinel grain with "holly-leaf" stringers extending from the main mass. Cr-diopside lherzolite xenolith. San Carlos Indian Reservation, Arizona. Reflected-light photomicrograph of polished section. Imaged area 2.7 mm x 4 mm.