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Natron: Na2CO3·10(H2O)
Comments: Opaque white powdery massive natron. Location: Atlin, British Columbia, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Natronambulite: (Na,Li)Mn++4[Si5O14(OH)]
Comments: Thin section image of natronamulite (Nn) in assocation with aegirine (Ac), arfvedsonite (Am) and quartz (Q). (JMPS, v12:332). Location: Tanohata mine, Iwate Prefecture, Japan. Scale: Picture Size 1.9 x 1.5 mm. © Mineralogical Journal
Natroniobite: NaNbO3
Comments: Olive-green colored translucent crystalline natroniobite fragments. Location: Lesnaya Varaka Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species