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- Diaspore abstract "Diaspore /ˈdaɪəspɔːr/ is an aluminium oxide hydroxide mineral, α-AlO(OH), crystallizing in the orthorhombic system and isomorphous with goethite. It occurs sometimes as flattened crystals, but usually as lamellar or scaly masses, the flattened surface being a direction of perfect cleavage on which the lustre is markedly pearly in character. It is colorless or greyish-white, yellowish, sometimes violet in color, and varies from translucent to transparent. It may be readily distinguished from other colorless transparent minerals with a perfect cleavage and pearly luster, like mica, talc, brucite, and gypsum by its greater hardness of 6.5 - 7. The specific gravity is 3.4. When heated before the blowpipe it decrepitates violently, breaking up into white pearly scales.The mineral occurs as an alteration product of corundum or emery and is found in granular limestone and other crystalline rocks. Well-developed crystals are found in the emery deposits of the Urals and at Chester, Massachusetts, and in kaolin at Schemnitz in Hungary. If obtainable in large quantity, it would be of economic importance as a source of aluminium.Diaspore along with gibbsite and boehmite are the major components of the aluminium ore bauxite.It was first described in 1801 for an occurrence in Mramorsk Zavod, Sverdlovskaya Oblast, Middle Urals, Russia. The name is from the Greek for διασπείρειυ, to scatter, in allusion to its decrepitation on heating.Other names for diaspore include empholite, kayserite, tanatarite and spelling variations of these.Zultanite and Ottomanite are trade names for the gem quality, color change variety of diaspore (also known as Turkish diaspore) from the İlbir Mountains of southwest Turkey.".
- Diaspore thumbnail Mineraly.sk_-_diaspor.jpg?width=300.
- Diaspore wikiPageID "740883".
- Diaspore wikiPageRevisionID "598278319".
- Diaspore 2v "Measured: 84° to 86°, Calculated: 80° to 84°".
- Diaspore birefringence "δ = 0.048".
- Diaspore caption "Diaspore from Slovakia".
- Diaspore category Oxide_minerals.
- Diaspore cleavage "{010} perfect, {110} distinct, {100} in traces".
- Diaspore color "White, pale gray, colorless, greenish gray, brown, pale yellow, pink,blurple; may exhibit color change".
- Diaspore diaphaneity "Transparent to translucent".
- Diaspore dispersion "r < v, weak".
- Diaspore formula "AlO".
- Diaspore fracture "Conchoidal".
- Diaspore fusibility "Infusible".
- Diaspore gravity "3.1".
- Diaspore habit "Platey, elongated to acicular crystals; also stalactitic, foliated, scaly, disseminated and massive".
- Diaspore hasPhotoCollection Diaspore.
- Diaspore luster "Adamantine, vitreous, pearly on cleavage faces".
- Diaspore mohs "6.5".
- Diaspore name "Diaspore".
- Diaspore opticalprop "Biaxial".
- Diaspore other "Decrepitates releasing water in closed tube on heating".
- Diaspore pleochroism "Strong".
- Diaspore refractive "nα = 1.682 - 1.706 nβ = 1.705 - 1.725 nγ = 1.730 - 1.752".
- Diaspore solubility Solubility.
- Diaspore strunz "4".
- Diaspore symmetry "Orthorhombic 2/m 2/m 2/m".
- Diaspore system "Orthorhombic dipyramidal".
- Diaspore tenacity "Very brittle".
- Diaspore twinning "Forms heart shaped twins on {021} or pseudohexagonal aggregates".
- Diaspore unitCell "a = 4.4007 Å, b = 9.4253 Å, c = 2.8452 Å; Z = 4".
- Diaspore subject Category:Aluminium_minerals.
- Diaspore subject Category:Hydroxide_minerals.
- Diaspore subject Category:Orthorhombic_minerals.
- Diaspore type Abstraction100002137.
- Diaspore type AluminiumMinerals.
- Diaspore type HydroxideMinerals.
- Diaspore type Material114580897.
- Diaspore type Matter100020827.
- Diaspore type Mineral114662574.
- Diaspore type OrthorhombicMinerals.
- Diaspore type Part113809207.
- Diaspore type PhysicalEntity100001930.
- Diaspore type Relation100031921.
- Diaspore type Substance100019613.
- Diaspore type ChemicalSubstance.
- Diaspore type Mineral.
- Diaspore type ChemicalObject.
- Diaspore type Thing.
- Diaspore comment "Diaspore /ˈdaɪəspɔːr/ is an aluminium oxide hydroxide mineral, α-AlO(OH), crystallizing in the orthorhombic system and isomorphous with goethite. It occurs sometimes as flattened crystals, but usually as lamellar or scaly masses, the flattened surface being a direction of perfect cleavage on which the lustre is markedly pearly in character. It is colorless or greyish-white, yellowish, sometimes violet in color, and varies from translucent to transparent.".
- Diaspore label "Diaspoor".
- Diaspore label "Diaspor".
- Diaspore label "Diaspor".
- Diaspore label "Diaspore (minéral)".
- Diaspore label "Diaspore".
- Diaspore label "Diasporo".
- Diaspore label "Diásporo".
- Diaspore label "Diásporo".
- Diaspore label "Диаспор".
- Diaspore label "ダイアスポア".
- Diaspore sameAs Diaspor.
- Diaspore sameAs Diaspor.
- Diaspore sameAs Diásporo.
- Diaspore sameAs Diaspore_(minéral).
- Diaspore sameAs Diasporo.
- Diaspore sameAs ダイアスポア.
- Diaspore sameAs Diaspoor.
- Diaspore sameAs Diaspor.
- Diaspore sameAs Diásporo.
- Diaspore sameAs m.037d55.
- Diaspore sameAs Q411891.
- Diaspore sameAs Q411891.
- Diaspore sameAs Diaspore.
- Diaspore wasDerivedFrom Diaspore?oldid=598278319.
- Diaspore depiction Mineraly.sk_-_diaspor.jpg.
- Diaspore isPrimaryTopicOf Diaspore.
- Diaspore name "Diaspore".
