Beautiful blue glaucophane from Syros, Greece. Here you can see that the rims are higher in iron and are much more blue. #ThinSectionThursday #geology #metamorphism #minerals #crystals pic.twitter.com/OsBxsUu3Bv
— Jesse Walters (@thegeojesse) April 15, 2021
via Twitter https://twitter.com/thegeojesse
April 15, 2021 at 09:35PM
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