Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Dumortierite> ?p ?o. }
Showing items 1 to 78 of
78
with 100 items per page.
- Dumortierite abstract "Dumortierite is a fibrous variably colored aluminium boro-silicate mineral, Al7BO3(SiO4)3O3. Dumortierite crystallizes in the orthorhombic system typically forming fibrous aggregates of slender prismatic crystals. The crystals are vitreous and vary in color from brown, blue, and green to more rare violet and pink. Substitution of iron and other tri-valent elements for aluminium result in the color variations. It has a Mohs hardness of 7 and a specific gravity of 3.3 to 3.4. Crystals show pleochroism from red to blue to violet. Dumortierite quartz is blue colored quartz containing abundant dumortierite inclusions.Dumortierite was first described in 1881 for an occurrence in Chaponost, in the Rhône-Alps of France and named for the French paleontologist Eugène Dumortier (1803–1873). It typically occurs in high temperature aluminium rich regional metamorphic rocks, those resulting from contact metamorphism and also in boron rich pegmatites. The most extensive investigation on dumortierite was done on samples from the high grade metamorphic Gfohl unit in Austria by Fuchs et al. (2005). It is used in the manufacture of high grade porcelain. It is sometimes mistaken for sodalite and has been used as imitation lapis lazuli.Sources of Dumortierite include Austria, Brazil, Canada, France, Italy, Madagascar, Namibia, Nevada, Norway, Poland, Russia and Sri Lanka.".
- Dumortierite colour Blue.
- Dumortierite thumbnail Dumortierite-ch23a.jpg?width=300.
- Dumortierite wikiPageExternalLink 173.
- Dumortierite wikiPageExternalLink dumortie.htm.
- Dumortierite wikiPageExternalLink AM11_93.pdf.
- Dumortierite wikiPageExternalLink AM11_96.pdf.
- Dumortierite wikiPageID "1895446".
- Dumortierite wikiPageRevisionID "601657505".
- Dumortierite 2v "Measured: 20° to 52°, Calculated: 30°".
- Dumortierite birefringence "δ = 0.027".
- Dumortierite caption "Dumortierite from Alpine County, California, USA, possibly pseudomorphic after tourmaline".
- Dumortierite category Silicate_minerals.
- Dumortierite cleavage "Distinct on {100}, poor on {110}; parting on {001}".
- Dumortierite color "Blue, greenish-blue, violet-blue, pale blue, red".
- Dumortierite diaphaneity "Transparent to translucent".
- Dumortierite dispersion "r > v; strong".
- Dumortierite formula "Al7BO33O3 or Al6.5-7BO333".
- Dumortierite fracture "Fibrous".
- Dumortierite gravity "3.3".
- Dumortierite habit "As fibrous or columnar crystals; coarsely crystalline to intimate parallel aggregates of needles; massive".
- Dumortierite hasPhotoCollection Dumortierite.
- Dumortierite luster "Vitreous to dull".
- Dumortierite mohs "7".
- Dumortierite name "Dumortierite".
- Dumortierite opticalprop "Biaxial".
- Dumortierite pleochroism "Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue".
- Dumortierite refractive "nα = 1.659 - 1.678 nβ = 1.684 - 1.691 nγ = 1.686 - 1.692".
- Dumortierite streak "White".
- Dumortierite strunz "9".
- Dumortierite symmetry "Orthorhombic 2/m 2/m 2/m".
- Dumortierite system "Orthorhombic - Dipyramidal".
- Dumortierite twinning "Common on {110}, may produce trillings".
- Dumortierite unitCell "a = 11.77 Å, b = 20.21 Å,".
- Dumortierite unitCell "c = 4.71 Å; Z=4".
- Dumortierite subject Category:Aluminium_minerals.
- Dumortierite subject Category:Borate_minerals.
- Dumortierite subject Category:Gemstones.
- Dumortierite subject Category:Nesosilicates.
- Dumortierite subject Category:Orthorhombic_minerals.
- Dumortierite type Abstraction100002137.
- Dumortierite type AluminiumMinerals.
- Dumortierite type BorateMinerals.
- Dumortierite type Material114580897.
- Dumortierite type Matter100020827.
- Dumortierite type Mineral114662574.
- Dumortierite type OrthorhombicMinerals.
- Dumortierite type Part113809207.
- Dumortierite type PhysicalEntity100001930.
- Dumortierite type Relation100031921.
- Dumortierite type Substance100019613.
- Dumortierite type ChemicalSubstance.
- Dumortierite type Mineral.
- Dumortierite type ChemicalObject.
- Dumortierite type Thing.
- Dumortierite comment "Dumortierite is a fibrous variably colored aluminium boro-silicate mineral, Al7BO3(SiO4)3O3. Dumortierite crystallizes in the orthorhombic system typically forming fibrous aggregates of slender prismatic crystals. The crystals are vitreous and vary in color from brown, blue, and green to more rare violet and pink. Substitution of iron and other tri-valent elements for aluminium result in the color variations. It has a Mohs hardness of 7 and a specific gravity of 3.3 to 3.4.".
- Dumortierite label "Dumortieriet".
- Dumortierite label "Dumortierit".
- Dumortierite label "Dumortierita".
- Dumortierite label "Dumortierite".
- Dumortierite label "Dumortierite".
- Dumortierite label "Dumortieryt".
- Dumortierite label "Dumortiérite".
- Dumortierite label "Дюмортьерит".
- Dumortierite sameAs Dumortierit.
- Dumortierite sameAs Dumortierita.
- Dumortierite sameAs Dumortiérite.
- Dumortierite sameAs Dumortierite.
- Dumortierite sameAs Dumortieriet.
- Dumortierite sameAs Dumortieryt.
- Dumortierite sameAs m.064fzj.
- Dumortierite sameAs Q677619.
- Dumortierite sameAs Q677619.
- Dumortierite sameAs Dumortierite.
- Dumortierite wasDerivedFrom Dumortierite?oldid=601657505.
- Dumortierite depiction Dumortierite-ch23a.jpg.
- Dumortierite isPrimaryTopicOf Dumortierite.
- Dumortierite name "Dumortierite".
