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Not only is it #InternationalRockDay. It is also #thinsectionthursday!
Charoite schist (Yakutia)#nature #art #geology #science #blue http://pic.twitter.com/2l1DWfIbH2

— micROCKScopica (@micROCKScopica) July 13, 2017

via Twitter https://twitter.com/micROCKScopica

July 13, 2017 at 06:41PM