Graphite in a contact zone between a pegmatitic dyke and a amphibolite
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Graphite in a contact zone between a pegmatitic dyke and a amphibolite

by Sophie Graul, Tallinn University of Technology, Tallinn, Estonia and France

Close-up of graphite crystals and biotite layers in the contact zone between a pegmatitic dyke and ortho amphibolite on the Kopparnäs coastline, Finland.