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Vivianite: Fe++3(PO4)2·8(H2O) Eosphorite: MnAl(PO4)(OH)2·(H2O)
Comments: Bottle-green translucent vivianite crystal (2cm) associated with reddish, micro eosphorite crystals.
Location: Lavra do Énio pegmatite, Galiléia, Governador Valadares, Rio Doce, Minas Gerais, Brazil.
Scale: 3.5 x 3 x 2 cm..
© Tom Loomis / Dakota Matrix
Comments: Transparent, bluish crystal aggregate of vivianite on matrix.
Location: Santa Eulalia, Chihuahua, Mexico.
Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
Vivianite: Fe++3(PO4)2·8(H2O) Maricite: NaFe++PO4
Comments: Brown maricite nodule with internal radiating structure, with blue vivianite.
Location: Big Fish River, Yukon Territory, Canada.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species