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Weberite: Na2MgAlF7 Jorgensenite: Na2(Sr,Ba)14Na2Al12F64(OH,F)
Comments: SEM image of polished section of aluminofluoride vein mounted in epoxy. Bladed jorgensenite (Jor), barite (Bar) and weberite (Web) with minor quartz, bøgvadite, schorl, pyrite, galena, chalcopyrite and chalcocite. Location: Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland. Scale: See Image. © Pavel M. Kartashov
Weberite: Na2MgAlF7 Cryolite: Na3AlF6
Comments: Gray weberite masses in white cryolite. Location: Ivigtut, Greenland. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species