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- Annite abstract "Annite is a phyllosilicate mineral in the mica family. It has a chemical formula of KFe32+AlSi3O10(OH,F)2. Annite is the iron end member of the biotite mica group, the iron rich analogue of magnesium rich phlogopite. Annite is monoclinic and contains tabular crystals and cleavage fragments with pseudohexagonal outlines. There are contact twins with composition surface {001} and twin axis {310}.Annite was first described in 1868 for the first noted occurrence in Cape Ann, Rockport, Essex County, Massachusetts, US. It also occurs on Pikes Peak, El Paso County, Colorado. It occurs in igneous and metamorphic rocks that are deficient in magnesium. It occurs associated with fluorite and zircon in the type locality.".
- Annite thumbnail Annite_sample.jpg?width=300.
- Annite wikiPageID "28854075".
- Annite wikiPageRevisionID "541492954".
- Annite 2v "Calculated: 12° to 36°".
- Annite caption "Annite sample".
- Annite category Silicate_minerals.
- Annite category "Mica group".
- Annite cleavage "perfect in one direction {001}".
- Annite color "Brown to black".
- Annite diaphaniety "translucent to transparent".
- Annite formula "KFe32+AlSi3O102".
- Annite fracture "uneven".
- Annite gravity "approximately 3.3".
- Annite habit "usually in "blocks" of thin sheets or as aggregations of foliated thin scales. Includes large, well formed pseudohexagonal prisms up to 12 cm across and 15 cm long.".
- Annite hasPhotoCollection Annite.
- Annite luster "submetallic to vitreous; pearly on cleavage surfaces".
- Annite mohs "2.5".
- Annite molecularWeight "512.88".
- Annite name "Annite".
- Annite opticalprop "Biaxial".
- Annite other "diagnostic: occurrence: in magnesium poor igneous and metamorphic rocks.".
- Annite pleochroism "X = brown; Y = Z = dark brown".
- Annite refractive "nα = 1.625 - 1.631 nβ = 1.690 nγ = 1.691 - 1.697".
- Annite streak "brownish white".
- Annite strunz "9".
- Annite symmetry "Monoclinic 2/m".
- Annite system "Monoclinic, pseudohexagonal".
- Annite tenacity "flexible".
- Annite twinning "contact twins with composition surface on {001} and twin axis {310}".
- Annite unitCell "a = 5.39 Å, b = 9.33 Å, c = 10.29 Å; β = 100°; Z = 2".
- Annite subject Category:Aluminium_minerals.
- Annite subject Category:Iron_minerals.
- Annite subject Category:Mica_group.
- Annite subject Category:Monoclinic_minerals.
- Annite subject Category:Phyllosilicates.
- Annite subject Category:Potassium_minerals.
- Annite type Abstraction100002137.
- Annite type AluminiumMinerals.
- Annite type IronMinerals.
- Annite type Material114580897.
- Annite type Matter100020827.
- Annite type Mineral114662574.
- Annite type MonoclinicMinerals.
- Annite type Part113809207.
- Annite type PhysicalEntity100001930.
- Annite type PotassiumMinerals.
- Annite type Relation100031921.
- Annite type Substance100019613.
- Annite type ChemicalSubstance.
- Annite type Mineral.
- Annite type ChemicalObject.
- Annite type Thing.
- Annite comment "Annite is a phyllosilicate mineral in the mica family. It has a chemical formula of KFe32+AlSi3O10(OH,F)2. Annite is the iron end member of the biotite mica group, the iron rich analogue of magnesium rich phlogopite. Annite is monoclinic and contains tabular crystals and cleavage fragments with pseudohexagonal outlines.".
- Annite label "Annite".
- Annite label "Annite".
- Annite sameAs Annite.
- Annite sameAs m.0ddghn2.
- Annite sameAs Q3618110.
- Annite sameAs Q3618110.
- Annite sameAs Annite.
- Annite wasDerivedFrom Annite?oldid=541492954.
- Annite depiction Annite_sample.jpg.
- Annite isPrimaryTopicOf Annite.
- Annite name "Annite".