Fig. 5
From: Formation mechanisms of ringwoodite: clues from the Martian meteorite Northwest Africa 8705
BF-TEM images, SAED patterns of polycrystalline ringwoodite, rod-like ringwoodite and the coexisting wadsleyite. a SE image of FIB-slice #2 consists of two parts. b Enlarged BF-TEM image of the white box “b” in a. SAED pattern of grain 1 corresponds to ringwoodite. c, d Enlarged BF-TEM images of the white box “c” and “d” from a in the matrix. SAED patterns of representative grains indicate that they are troilite, ringwoodite, and wadsleyite, respectively. The white dotted-line box represents the TEM-EDS elemental mapping region. e Enlarged BF-TEM images of the white box “e” in c. The rod-like ringwoodite was identified from the SAED pattern. f clinopyroxene was identified by SAED pattern and TEM–EDS. Tr troilite, Cpx clinopyroxene, others are the same as above