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- Anatase abstract "Anatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile. It is always found as small, isolated and sharply developed crystals, and like rutile, a more commonly occurring modification of titanium dioxide, it crystallizes in the tetragonal system; but, although the degree of symmetry is the same for both, there is no relation between the interfacial angles of the two minerals, except in the prism-zone of 45° and 90°. The common pyramid of anatase, parallel to the faces of which there are perfect cleavages, has an angle over the polar edge of 82°9', the corresponding angle of rutile being 56°52½'. It was on account of this steeper pyramid of anatase that the mineral was named, by René Just Haüy in 1801, from the Greek anatasis, "extension", the vertical axis of the crystals being longer than in rutile. There are also important differences between the physical characters of anatase and rutile: the former is less hard (5.5–6 vs. 6-6.5 Mohs) and dense (specific gravity about 3.9 vs. 4.2). Also, anatase is optically negative whereas rutile is positive, and its luster is even more strongly adamantine or metallic-adamantine than that of rutile.".
- Anatase thumbnail Anatase_Oisans.jpg?width=300.
- Anatase wikiPageID "61211".
- Anatase wikiPageRevisionID "602198005".
- Anatase birefringence "δ = 0.073".
- Anatase category Oxide_minerals.
- Anatase cleavage "Perfect on [001] and [011]".
- Anatase color "Black, reddish to yellowish brown, dark blue, gray".
- Anatase diaphaneity "Transparent to nearly opaque".
- Anatase formula "TiO2".
- Anatase fracture "Subconchoidal".
- Anatase gravity "3.79".
- Anatase habit "Pyramidal , tabular .".
- Anatase hasPhotoCollection Anatase.
- Anatase luster "Adamantine to splendent, metallic".
- Anatase mohs "5.5".
- Anatase molweight "79.88".
- Anatase name "Anatase".
- Anatase opticalprop "Uniaxial , anomalously biaxial in deeply colored crystals".
- Anatase pleochroism "Weak".
- Anatase refractive "nω = 2.561, nε = 2.488".
- Anatase streak "pale yellowish white".
- Anatase strunz "4".
- Anatase symmetry "Space group I41/amd".
- Anatase symmetry "Tetragonal ditetragonal dipyramidal".
- Anatase system Tetragonal_crystal_system.
- Anatase tenacity "Brittle".
- Anatase twinning "Rare on {112}".
- Anatase unitCell "a = 3.7845 Å, c = 9.5143 Å; Z = 4".
- Anatase subject Category:Oxide_minerals.
- Anatase subject Category:Tetragonal_minerals.
- Anatase subject Category:Titanium_minerals.
- Anatase type Abstraction100002137.
- Anatase type Material114580897.
- Anatase type Matter100020827.
- Anatase type Mineral114662574.
- Anatase type OxideMinerals.
- Anatase type Part113809207.
- Anatase type PhysicalEntity100001930.
- Anatase type Relation100031921.
- Anatase type Substance100019613.
- Anatase type TetragonalMinerals.
- Anatase type TitaniumMinerals.
- Anatase type ChemicalSubstance.
- Anatase type Mineral.
- Anatase type ChemicalObject.
- Anatase type Thing.
- Anatase comment "Anatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile. It is always found as small, isolated and sharply developed crystals, and like rutile, a more commonly occurring modification of titanium dioxide, it crystallizes in the tetragonal system; but, although the degree of symmetry is the same for both, there is no relation between the interfacial angles of the two minerals, except in the prism-zone of 45° and 90°.".
- Anatase label "Anataas".
- Anatase label "Anatas".
- Anatase label "Anatasa".
- Anatase label "Anatase".
- Anatase label "Anatase".
- Anatase label "Anatase".
- Anatase label "Anatasio".
- Anatase label "Anataz".
- Anatase label "Анатаз".
- Anatase label "鋭錐石".
- Anatase label "锐钛矿".
- Anatase sameAs Anatas.
- Anatase sameAs Anatas.
- Anatase sameAs Anatasa.
- Anatase sameAs Anatasa.
- Anatase sameAs Anatase.
- Anatase sameAs Anatasio.
- Anatase sameAs 鋭錐石.
- Anatase sameAs Anataas.
- Anatase sameAs Anataz.
- Anatase sameAs Anatase.
- Anatase sameAs m.0gl_8.
- Anatase sameAs Q413357.
- Anatase sameAs Q413357.
- Anatase sameAs Anatase.
- Anatase wasDerivedFrom Anatase?oldid=602198005.
- Anatase depiction Anatase_Oisans.jpg.
- Anatase isPrimaryTopicOf Anatase.
- Anatase name "Anatase".
