Grunerite and garnet in metamorphosed (amphibolite facies) iron-rich rocks. South-central Maine (U.S.A). Thanks to David P West for the sample. #grunerite #garnet #thinsection #usa https://t.co/7EYE2OPium
— Alexstrekeisen (@alexstrekeisen) Jan 26, 2022
via Twitter https://twitter.com/alexstrekeisen
January 27, 2022 at 01:06AM
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