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Fougèrite

Fougèrite is a relatively recently described naturally occurring green rust mineral. It is the archetype of the fougèrite group in the larger hydrotalcite supergroup of naturally occurring layered double hydroxides. The structure is based on brucite-like layers containing Fe2+ and Fe3+ cations, O2− and OH− anions, with loosely bound 2− groups and H2O…

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Alters to
Unstable – alters to goethite or limonite
Category
Hydroxide mineral
Colour
Bluish green
Crystal class
3m (3 2/m) – Hexagonal scalenohedral
Crystal system
Trigonal
Diaphaneity
Opaque

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Fougèrite

Nodes18
Edges17
Triples13
Avg. degree1.89
Density0.111111
Components1

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Fougèrite

Top relations

Alters to · 1
Fougèrite → Unstable – alters to goethite or limonite
Category · 1
Fougèrite → Hydroxide mineral
Colour · 1
Fougèrite → Bluish green
Crystal class · 1
Fougèrite → 3m (3 2/m) – Hexagonal scalenohedral
Crystal system · 1
Fougèrite → Trigonal
Diaphaneity · 1
Fougèrite → Opaque
Formula · 1
Fougèrite → [Fe2+4Fe3+2(OH)12][CO3]·3H2O
IMA symbol · 1
Fougèrite → Fgè
Luster · 1
Fougèrite → Earthy
Space group · 1
Fougèrite → R3m

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Important terminology

fe2 oh mineral co3 fe3 group 3h2o trébeurdenite goethite naturally occurring oxidation intergrown trigonal green system formula 4fe3 12 colour

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
FougèriteAlters toUnstable – alters to goethite or limonite1.00infobox
FougèriteCategoryHydroxide mineral1.00infobox
FougèriteColourBluish green1.00infobox
FougèriteCrystal class3m (3 2/m) – Hexagonal scalenohedral1.00infobox
FougèriteCrystal systemTrigonal1.00infobox
FougèriteDiaphaneityOpaque1.00infobox
FougèriteFormula[Fe2+4Fe3+2(OH)12][CO3]·3H2O1.00infobox
FougèriteIMA symbolFgè1.00infobox
FougèriteLusterEarthy1.00infobox
FougèriteSpace groupR3m1.00infobox
FougèriteStrunz classification4.FL.051.00infobox
FougèriteUnit cella = 3.125 Å, c = 22.5 Å1.00infobox
Fougèriteis arelatively recently described naturally occurring green rust mineral0.90text

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