Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Sobolevite: Na11(Na,Ca)4(Mg,Mn)Ti++++4(Si4O12)(PO4)4O5F3
Comments: Translucent crystalline sobolevite cleavage. Location: Mount Alluaiv, Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species