Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Corundum> ?p ?o }
- Corundum abstract "Corundum is a crystalline form of aluminium oxide (Al2O3) typically containing traces of iron, titanium, vanadium and chromium. It is a rock-forming mineral. It is one of the naturally transparent materials, but can have different colors when impurities are present. Transparent specimens are used as gems, called ruby if red and padparadscha if pink-orange. All other colors are called sapphire, e.g., \"green sapphire\" for a green specimen. The name \"corundum\" is derived from the Tamil word Kuruvindam or Sanskrit word Kuruvinda meaning ruby.Because of corundum's hardness (pure corundum is defined to have 9.0 Mohs), it can scratch almost every other mineral. It is commonly used as an abrasive on everything from sandpaper to large machines used in machining metals, plastics, and wood. Some emery is a mix of corundum and other substances, and the mix is less abrasive, with an average Mohs hardness of 8.0. In addition to its hardness, corundum is unusual for its density of 4.02 g/cm3, which is very high for a transparent mineral composed of the low-atomic mass elements aluminium and oxygen.".
- Corundum thumbnail Several_corundum_crystals.jpg?width=300.
- Corundum wikiPageID "5974".
- Corundum wikiPageLength "9509".
- Corundum wikiPageOutDegree "88".
- Corundum wikiPageRevisionID "703303999".
- Corundum wikiPageWikiLink Abrasive.
- Corundum wikiPageWikiLink Aluminium.
- Corundum wikiPageWikiLink Aluminium_oxide.
- Corundum wikiPageWikiLink Atomic_mass.
- Corundum wikiPageWikiLink Auguste_Victor_Louis_Verneuil.
- Corundum wikiPageWikiLink Barium_fluoride.
- Corundum wikiPageWikiLink Bauxite.
- Corundum wikiPageWikiLink Boric_acid.
- Corundum wikiPageWikiLink Category:Abrasives.
- Corundum wikiPageWikiLink Category:Aluminium_minerals.
- Corundum wikiPageWikiLink Category:Corundum_varieties.
- Corundum wikiPageWikiLink Category:Hematite_group.
- Corundum wikiPageWikiLink Category:Oxide_minerals.
- Corundum wikiPageWikiLink Category:Polymorphism_(materials_science).
- Corundum wikiPageWikiLink Category:Superhard_materials.
- Corundum wikiPageWikiLink Category:Trigonal_minerals.
- Corundum wikiPageWikiLink Chromium.
- Corundum wikiPageWikiLink Craigmont,_Ontario.
- Corundum wikiPageWikiLink Crystal.
- Corundum wikiPageWikiLink Detritus_(geology).
- Corundum wikiPageWikiLink Dike_(geology).
- Corundum wikiPageWikiLink Dunite.
- Corundum wikiPageWikiLink Emery_(rock).
- Corundum wikiPageWikiLink Gemstone.
- Corundum wikiPageWikiLink Gneiss.
- Corundum wikiPageWikiLink Hematite.
- Corundum wikiPageWikiLink Hercynite.
- Corundum wikiPageWikiLink Hydrothermal_synthesis.
- Corundum wikiPageWikiLink Igneous_rock.
- Corundum wikiPageWikiLink Intrusive_rock.
- Corundum wikiPageWikiLink Iron.
- Corundum wikiPageWikiLink Jacques-Joseph_Ebelmen.
- Corundum wikiPageWikiLink Lamprophyre.
- Corundum wikiPageWikiLink Laser.
- Corundum wikiPageWikiLink List_of_islands_of_Greece.
- Corundum wikiPageWikiLink Magnetite.
- Corundum wikiPageWikiLink Marble.
- Corundum wikiPageWikiLink Marc_Antoine_Auguste_Gaudin.
- Corundum wikiPageWikiLink Metamorphic_rock.
- Corundum wikiPageWikiLink Mineral.
- Corundum wikiPageWikiLink Mohs_scale_of_mineral_hardness.
- Corundum wikiPageWikiLink Naxos_(Crete).
- Corundum wikiPageWikiLink Nepheline_syenite.
- Corundum wikiPageWikiLink North_Carolina.
- Corundum wikiPageWikiLink Opacity_(optics).
- Corundum wikiPageWikiLink Oxygen.
- Corundum wikiPageWikiLink Peekskill,_New_York.
- Corundum wikiPageWikiLink Pegmatite.
- Corundum wikiPageWikiLink Red.
- Corundum wikiPageWikiLink Rock_(geology).
- Corundum wikiPageWikiLink Ruby.
- Corundum wikiPageWikiLink Sandpaper.
- Corundum wikiPageWikiLink Sanskrit.
- Corundum wikiPageWikiLink Sapphire.
- Corundum wikiPageWikiLink Schist.
- Corundum wikiPageWikiLink Space_group.
- Corundum wikiPageWikiLink Syenite.
- Corundum wikiPageWikiLink Tamil_language.
- Corundum wikiPageWikiLink Terrane.
- Corundum wikiPageWikiLink Titanium.
- Corundum wikiPageWikiLink Transparency_and_translucency.
- Corundum wikiPageWikiLink Transparent_ceramics.
- Corundum wikiPageWikiLink Trigonal_crystal_system.
- Corundum wikiPageWikiLink Ultramafic_rock.
- Corundum wikiPageWikiLink Vanadium.
- Corundum wikiPageWikiLink Verneuil_process.
- Corundum wikiPageWikiLink Watch.
- Corundum wikiPageWikiLink File:Corindon_azulEZ.jpg.
- Corundum wikiPageWikiLink File:Corundum-pV.svg.
- Corundum wikiPageWikiLink File:Corundum.png.
- Corundum wikiPageWikiLinkText "'''C'''orundum".
- Corundum wikiPageWikiLinkText "Corundum".
- Corundum wikiPageWikiLinkText "corindon".
- Corundum wikiPageWikiLinkText "corundum".
- Corundum wikiPageWikiLinkText "sapphire".
- Corundum alteration "May alter to mica on surfaces causing a decrease in hardness".
- Corundum category "Oxide mineral – Hematite group".
- Corundum cleavage "None – parting in 3 directions".
- Corundum color "Colorless, gray, brown; pink to red, orange, yellow, green, blue, violet; may be color zoned, asteriated mainly grey and brown".
- Corundum dana "4.3".
- Corundum diaphaneity "Transparent, translucent to opaque".
- Corundum formula "Aluminium oxide,".
- Corundum fracture "Conchoidal to uneven".
- Corundum fusibility "Infusible".
- Corundum gravity "3.95".
- Corundum habit "Steep bipyramidal, tabular, prismatic, rhombohedral crystals, massive or granular".
- Corundum luster "Adamantine to vitreous".
- Corundum melt "2044.0".
- Corundum mohs "9".
- Corundum name "Corundum".
- Corundum opticalprop "Uniaxial".
- Corundum other "May fluoresce or phosphoresce under UV light".
- Corundum pleochroism "None".
- Corundum refractive "nε = 1.759–1.763".