Fig. 4
From: Natural and experimental high-pressure, shock-produced terrestrial and extraterrestrial materials
Bright-field (BF)-TEM images of ringwoodite. a A ringwoodite crystal with a dense stacking fault in the Y-790729 L6 ordinary chondrite. b An olivine grain replaced with ringwoodite in the Y-791384 L6 ordinary chondrite. A part of the olivine grain in contact with the shock-melt vein is replaced with polycrystalline ringwoodite. Also, thin layers of ringwoodite occur in the olivine grain. The (100) of olivine is parallel with the {111} of ringwoodite. c A ringwoodite crystal with a dendritic texture in the Y-74445 L6 ordinary chondrite. Ol: olivine, Rwd: ringwoodite