抄録
We have improved the application of multi-disciplinary methods for crystal evaluation of fine-grained planetary materials : micrometeorites, a small particular portion of a meteorite, fine-grained samples retrieved from Wild2 comet and Asteroid Itokawa, and so on. In this paper, we give an example of the application of multi-disciplinary methods when we investigated secondary minerals in nakhlite Martian meteorites retrieved from Yamato Mountains, Antarctica. We also touch upon an issue of sample preparation and analysis of fine-grained dust retrieved from Asteroid Itokawa.