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SILICA and SILICATES #1
from top left clockwise: silica (chalcedony) in Ocean Jasper (Madagascar); chalcedony in Dinosaur Bone (Utah); Charoite in schist (Yakutia); Chlorite in blueschist (Valle d'Aosta)

...because Earth without Art is just eh...#science #geology #scicomm pic.twitter.com/q1esXHeMVN

— micROCKScopica (@micROCKScopica) June 20, 2020

via Twitter https://twitter.com/micROCKScopica

June 21, 2020 at 12:25AM