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.
Shkatulkalite: {(Na,Mn,Ca,[ ])4[Nb2(O,H2O)4Si4O14](OH,F)2}·2(H2O,[ ]) Manganoneptunite: KNa2Li(Mn,Fe++)2Ti2Si8O24
Comments: Pearly white shkatulkalite with brown mangan-neptunite grains. Location: Shkatulka pegmatite, Umbozero mine, Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 4.5 mm. © Thomas Witzke / Abraxas-Verlag