A reminder that it's possible to slice rock so thinly that you can shine light through it and identify minerals this way. This is a ~3 mm view of basalt (under XP) with olivine (blue) surrounded by pyroxene, magnetite, and plagioclase. Credit: Bernardo Cesare (@micROCKScopica) https://t.co/25qn7y716l
— Prof. Paul Byrne (@ThePlanetaryGuy) Jul 30, 2021
via Twitter https://twitter.com/ThePlanetaryGuy
July 31, 2021 at 01:19AM
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