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Micas (and some dust) in a schist#artsci #geology #colors #waves #microscopy #rocks #minerals pic.twitter.com/dNoyTiwCNV

— micROCKScopica (@micROCKScopica) February 19, 2019

via Twitter https://twitter.com/micROCKScopica

February 20, 2019 at 12:03AM