PPL (plane polarized light): Skeletal olivine crystals in a groundmass of skeletal pyroxenes. Komatiite from Zvishavane, Zimbabwe. See "Nisbet, E. G., et al. "Uniquely fresh 2.7 Ga komatiites from the Belingwe greenstone belt, Zimbabwe." Geology 15.12 (1987): 1147-1150." pic.twitter.com/aM0lt3ynoa
— Alexstrekeisen (@alexstrekeisen) August 17, 2020
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August 17, 2020 at 04:33PM
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