Neptunite Natrolite Image

Neptunite Natrolite Image
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 Natrolite, Neptunite

Large Natrolite Image

Mineral: Natrolite: Na2[Al2Si3O10]·2(H2O)  
Neptunite: KNa2Li(Fe++,Mn)2Ti2Si8O24
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.
Copyright: © Fabre Minerals
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