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.
Neptunite: KNa2Li(Fe++,Mn)2Ti2Si8O24 Natrolite: Na2[Al2Si3O10]·2(H2O)
Comments: Jet-black square prisms of neptunite etched out of the enclosing white natrolite with minor benitoite.
Location: Benitoite Gem Mine. San Benito Co. California, USA.
Scale: 6.5 x 6 cm.
© Fabre Minerals