Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Columbite> ?p ?o }
- Columbite abstract "Columbite, also called niobite, niobite-tantalite and columbate [(Fe, Mn)Nb2O6], is a black mineral group that is an ore of niobium. It has a submetallic luster and a high density and is a niobate of iron and manganese. This mineral group was first found in Haddam, Connecticut, in the United States. It forms a series with the tantalum-dominant analogue ferrotantalite and one with the manganese-dominant analogue manganocolumbite. The iron-rich member of the columbite group is ferrocolumbite. Some tin and tungsten may be present in the mineral. Yttrocolumbite is the yttrium-rich columbite with the formula (Y,U,Fe)(Nb,Ta)O4. It is a radioactive mineral found in Mozambique.Columbite has the same composition and crystal symmetry (orthorhombic) as tantalite. In fact, the two are often grouped together as a semi-singular mineral series called columbite-tantalite or coltan in many mineral guides. However, tantalite has a much greater specific gravity than columbite, more than 8.0 compared to columbite's 5.2.Columbite is also very similar to tapiolite. Those minerals have same chemical composition but different crystal symmetry: orthorhombic for columbite and tetragonal for tapiolite. The largest documented single crystal of columbite consisted of plates 6 millimetres (0.24 in) thick measuring 76 by 61 centimetres (30 in × 24 in).".
- Columbite thumbnail Columbite.jpg?width=300.
- Columbite wikiPageID "151481".
- Columbite wikiPageLength "7196".
- Columbite wikiPageOutDegree "40".
- Columbite wikiPageRevisionID "683520545".
- Columbite wikiPageWikiLink Category:Iron_minerals.
- Columbite wikiPageWikiLink Category:Manganese_minerals.
- Columbite wikiPageWikiLink Category:Niobium_minerals.
- Columbite wikiPageWikiLink Category:Orthorhombic_minerals.
- Columbite wikiPageWikiLink Category:Oxide_minerals.
- Columbite wikiPageWikiLink Category:Tantalum_minerals.
- Columbite wikiPageWikiLink Charles_Hatchett.
- Columbite wikiPageWikiLink Christopher_Columbus.
- Columbite wikiPageWikiLink Coltan.
- Columbite wikiPageWikiLink Connecticut_Colony.
- Columbite wikiPageWikiLink Ferrotantalite.
- Columbite wikiPageWikiLink Great_Britain.
- Columbite wikiPageWikiLink Haddam,_Connecticut.
- Columbite wikiPageWikiLink Hans_Sloane.
- Columbite wikiPageWikiLink Iron.
- Columbite wikiPageWikiLink John_Winthrop_the_Younger.
- Columbite wikiPageWikiLink List_of_Fellows_of_the_Royal_Society_W,X,Y,Z.
- Columbite wikiPageWikiLink List_of_minerals.
- Columbite wikiPageWikiLink List_of_presidents_of_the_Royal_Society.
- Columbite wikiPageWikiLink Lustre_(mineralogy).
- Columbite wikiPageWikiLink Manganese.
- Columbite wikiPageWikiLink Mineral.
- Columbite wikiPageWikiLink Mozambique.
- Columbite wikiPageWikiLink Niobium.
- Columbite wikiPageWikiLink Orthorhombic.
- Columbite wikiPageWikiLink Orthorhombic_crystal_system.
- Columbite wikiPageWikiLink Oxide_minerals.
- Columbite wikiPageWikiLink Oxygen.
- Columbite wikiPageWikiLink Specific_gravity.
- Columbite wikiPageWikiLink Tantalite.
- Columbite wikiPageWikiLink Tantalum.
- Columbite wikiPageWikiLink Tapiolite.
- Columbite wikiPageWikiLink Tetragonal.
- Columbite wikiPageWikiLink Tetragonal_crystal_system.
- Columbite wikiPageWikiLink United_States.
- Columbite wikiPageWikiLink Wait_Winthrop.
- Columbite wikiPageWikiLinkText "Columbite".
- Columbite wikiPageWikiLinkText "columbite".
- Columbite category Oxide_minerals.
- Columbite cleavage "[010] Distinct".
- Columbite color "Black, brownish black.".
- Columbite formula "Fe2+Nb2O6".
- Columbite fracture "Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.".
- Columbite gravity "5.3".
- Columbite habit "Massive - Granular - Common texture observed in granite and other igneous rock; Striated - Parallel lines on crystal surface or cleavage face.".
- Columbite hasPhotoCollection Columbite.
- Columbite luster "sub-metallic".
- Columbite mohs "6".
- Columbite name "Columbite-".
- Columbite opticalprop "Biaxial , b=2.29-2.4".
- Columbite other "non-radioactive, non-fluorescent.".
- Columbite streak "blackish brown".
- Columbite strunz "4".
- Columbite system "Orthorhombic, , SpaceGroup = Pcan".
- Columbite wikiPageUsesTemplate Template:Commons_category.
- Columbite wikiPageUsesTemplate Template:Convert.
- Columbite wikiPageUsesTemplate Template:Infobox_mineral.
- Columbite wikiPageUsesTemplate Template:Manganese_minerals.
- Columbite wikiPageUsesTemplate Template:Oxide-mineral-stub.
- Columbite wikiPageUsesTemplate Template:Reflist.
- Columbite wikiPageUsesTemplate Template:Wikisource-inline.
- Columbite subject Category:Iron_minerals.
- Columbite subject Category:Manganese_minerals.
- Columbite subject Category:Niobium_minerals.
- Columbite subject Category:Orthorhombic_minerals.
- Columbite subject Category:Oxide_minerals.
- Columbite subject Category:Tantalum_minerals.
- Columbite hypernym Group.
- Columbite type Band.
- Columbite type ChemicalSubstance.
- Columbite type Mineral.
- Columbite type Oxide.
- Columbite type ChemicalObject.
- Columbite type Thing.
- Columbite type Q7946.
- Columbite comment "Columbite, also called niobite, niobite-tantalite and columbate [(Fe, Mn)Nb2O6], is a black mineral group that is an ore of niobium. It has a submetallic luster and a high density and is a niobate of iron and manganese. This mineral group was first found in Haddam, Connecticut, in the United States. It forms a series with the tantalum-dominant analogue ferrotantalite and one with the manganese-dominant analogue manganocolumbite. The iron-rich member of the columbite group is ferrocolumbite.".
- Columbite label "Columbite".
- Columbite sameAs كولومبيت.
- Columbite sameAs Columbita.
- Columbite sameAs Columbit.
- Columbite sameAs Κολουμπίτης.
- Columbite sameAs Columbita.
- Columbite sameAs کلومبیت.
- Columbite sameAs Ferrocolumbite.
- Columbite sameAs קולומביט.
- Columbite sameAs Columbite.
- Columbite sameAs Колумбит.
- Columbite sameAs Kolumbitas.
- Columbite sameAs Columbiet.
- Columbite sameAs Columbitt.
- Columbite sameAs Kolumbit.
- Columbite sameAs Niobite.
- Columbite sameAs m.05_5sd8.
- Columbite sameAs Колумбит.