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Ferrogedrite Gallery

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Ferrogedrite : ☐[Fe2+2][Fe2+3Al2][(OH)2|Al2Si6O22], Siderophyllite : KFe2+2Al[Al2Si2O10](OH)2

Dolní Bory, Žďár nad Sázavou, Vysočina Region, Moravia (Mähren; Maehren), Czech Republic

Needles of ferrogedrite (ferro-anthophyllite of former descriptions) up to 4 cm on cleavage plane (001) of sekaninaite. Ferro-anthophyllite with siderophyllite are products of weathering and decay of sekaninaite. Collection of author.
 © Jakub JirásekPhoto ID: 42368    View Count: 738

Ferrogedrite : ☐[Fe2+2][Fe2+3Al2][(OH)2|Al2Si6O22], Gehlenite : Ca2Al[AlSiO7]

Kawai mine, Ena City, Gifu Prefecture, Chubu Region, Honshu Island, Japan

Dark green, with minor matrix.
1.5 cm example. S334-15
Excalibur Mineral specimen.
 © 2008, JGWPhoto ID: 140043    View Count: 224

Ferrogedrite : ☐[Fe2+2][Fe2+3Al2][(OH)2|Al2Si6O22]

Kawai mine, Ena City, Gifu Prefecture, Chubu Region, Honshu Island, Japan

Dark green granular ferrogedrite, with black annite and brown almandine.
5.0 cm sample. S091-04
Excalibur Mineral specimen.
 © 2008, JGWPhoto ID: 154411    View Count: 125
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