Microscopy
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gandom beryan meteorite POP porphyritic olivine pyroxene chondrule L3 ordinary chondrite timur kryachko polished thin section microscopy PPL
microscopyoptical mineralogypolarized lightchondrulemeteoritegandom beryantimur kryachkol3 chondriteordinary chondriteastrogeologyrockmineralgeologypolished thin sectionpetrographypop chondruleporphyritic olivine pyroxene