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- Gedrite abstract "Gedrite is a crystal belonging to the orthorhombic ferromagnesian subgroup of the amphibole supergroup of the double chain inosilicate minerals with the ideal formula: Mg2Mg3Al2(Al2Si6O22)(OH)2Gedrite is the magnesium (Mg) rich endmember of a solid solution series, with divalent manesium cations readily replaced with ferrous iron (Fe), leading to the iron rich endmember 'ferrogedrite', with the formula: Fe2Fe3Al2(Al2Si6O22)(OH)2. However, pure endmembers are very rare, with often either one of the mentioned cations dominating the composition. Thus, the formula can be written in such a way to express common intermediary gerdite samples:(Mg,Fe)2+2(Mg,Fe)2+3Al2(Al2Si6O22)(OH)2. Divalent manganese (Mn) may substitue for some of the magnesium. Trivalent or ferric iron, or titanium4+ may replace some of the aluminum (Al). Fluorine and chlorine are common substitutes for the hydroxyl (OH) in amphoboles. Other chemical impurites may include calcium, sodium, and potassium.Gedrite also forms a series with another ferromagnesian amphibole, anthophyllite.Gedrite occurs in contact and medium to high grade metamorphic rocks in association with garnet, cordierite, anthophyllite, cummingtonite, sapphirine, sillimanite, kyanite, quartz, staurolite and biotite.Gedrite was first described for an occurrence in Gedres, France in 1836.".
- Gedrite wikiPageID "19108921".
- Gedrite wikiPageRevisionID "606070003".
- Gedrite hasPhotoCollection Gedrite.
- Gedrite subject Category:Amphibole_group.
- Gedrite subject Category:Orthorhombic_minerals.
- Gedrite type Abstraction100002137.
- Gedrite type Material114580897.
- Gedrite type Matter100020827.
- Gedrite type Mineral114662574.
- Gedrite type OrthorhombicMinerals.
- Gedrite type Part113809207.
- Gedrite type PhysicalEntity100001930.
- Gedrite type Relation100031921.
- Gedrite type Substance100019613.
- Gedrite comment "Gedrite is a crystal belonging to the orthorhombic ferromagnesian subgroup of the amphibole supergroup of the double chain inosilicate minerals with the ideal formula: Mg2Mg3Al2(Al2Si6O22)(OH)2Gedrite is the magnesium (Mg) rich endmember of a solid solution series, with divalent manesium cations readily replaced with ferrous iron (Fe), leading to the iron rich endmember 'ferrogedrite', with the formula: Fe2Fe3Al2(Al2Si6O22)(OH)2.".
- Gedrite label "Gedrite".
- Gedrite label "Gedrite".
- Gedrite label "Gedryt".
- Gedrite label "礬土直閃石".
- Gedrite sameAs Gedrite.
- Gedrite sameAs 礬土直閃石.
- Gedrite sameAs Gedryt.
- Gedrite sameAs m.04jfc06.
- Gedrite sameAs Q2252659.
- Gedrite sameAs Q2252659.
- Gedrite sameAs Gedrite.
- Gedrite wasDerivedFrom Gedrite?oldid=606070003.
- Gedrite isPrimaryTopicOf Gedrite.