Microscopy
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gandom beryan meteorite L3 chondrite timur kryachko polysomatic barred olivine polished thin section PPL
microscopyoptical mineralogypolarized lightchondrulemeteoritegandom beryantimur kryachkol3 chondriteordinary chondriteastrogeologyrockmineralgeologypolished thin sectionpetrographypolysomatic barred olivine