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Gedrite: [ ]Mg5Al2Si6Al2O22(OH)2
Comments: Back prismatic crystalline gedrite in rock. Location: Schissgruvan, near Ludvika, Dalarna, Kopparberg, Sweden. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Gedrite: [ ]Mg5Al2Si6Al2O22(OH)2 Magnesiogedrite: (Mg,Fe++)5Al2Si6Al2O22(OH)2
Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). Location: Bamble, Telemark, Norway. Scale: See Image. © Rruff Database