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- Simpsonite abstract "Simpsonite has a general formula of Al4(Ta,Nb)3O13(OH). It occurs as euhedral to subhedral tabular to short and prismatic crystals, commonly in subparallel groups. Under the petrographic microscope it has a very high relief. It was named after Edward Sydney Simpson (1875–1939), government mineralogist and analyst of Western Australia. It is an accessory mineral in some tantalum-rich granite pegmatites. It occurs in association with tantalite, manganotantalite, microlite, tapiolite, beryl, spodumene, montebrasite, pollucite, petalite, eucryptite, tourmaline, muscovite and quartz. It is found in a few locations around the world, notably in the Onca and Paraiba mines of Rio Grande do Norte, Brazil and at Tabba Tabba, Western Australia.".
- Simpsonite thumbnail Simpsonite-154999.jpg?width=300.
- Simpsonite wikiPageID "28857750".
- Simpsonite wikiPageRevisionID "542827159".
- Simpsonite birefringence "δ = 0.020".
- Simpsonite caption "Locality: Alto do Giz pegmatite, Rio Grande do Norte, Brazil. Size: 1.6 x 1.5 x 1.8 cm.".
- Simpsonite category Oxide_minerals.
- Simpsonite cleavage "None".
- Simpsonite color "White to cream, yellow to yellow-brown when altered".
- Simpsonite diaphaneity "Semitransparent".
- Simpsonite formula "Al43O13".
- Simpsonite fracture "Conchoidal".
- Simpsonite gravity "6.7".
- Simpsonite habit "Euhedral, prismatic, striated".
- Simpsonite hasPhotoCollection Simpsonite.
- Simpsonite imagesize "300".
- Simpsonite luster "Vitreous to adamantine".
- Simpsonite mohs "7".
- Simpsonite molweight "813.65".
- Simpsonite name "Simpsonite".
- Simpsonite opticalprop "Uniaxial negative".
- Simpsonite other "Blue-white cathodoluminescence and yellow fluorescence in SW UV".
- Simpsonite refractive "nω = 2.045 nε = 2.025".
- Simpsonite streak "White".
- Simpsonite strunz "4".
- Simpsonite symmetry "Trigonal 3 pyramidal".
- Simpsonite system Trigonal_crystal_system.
- Simpsonite tenacity "Brittle".
- Simpsonite unitCell "a = 7.37 Å, c = 4.51 Å; Z = 1".
- Simpsonite subject Category:Aluminium_minerals.
- Simpsonite subject Category:Niobium_minerals.
- Simpsonite subject Category:Oxide_minerals.
- Simpsonite subject Category:Tantalum_minerals.
- Simpsonite subject Category:Trigonal_minerals.
- Simpsonite type Abstraction100002137.
- Simpsonite type AluminiumMinerals.
- Simpsonite type Material114580897.
- Simpsonite type Matter100020827.
- Simpsonite type Mineral114662574.
- Simpsonite type NiobiumMinerals.
- Simpsonite type OxideMinerals.
- Simpsonite type Part113809207.
- Simpsonite type PhysicalEntity100001930.
- Simpsonite type Relation100031921.
- Simpsonite type Substance100019613.
- Simpsonite type TantalumMinerals.
- Simpsonite type TrigonalMinerals.
- Simpsonite type ChemicalSubstance.
- Simpsonite type Mineral.
- Simpsonite type ChemicalObject.
- Simpsonite type Thing.
- Simpsonite comment "Simpsonite has a general formula of Al4(Ta,Nb)3O13(OH). It occurs as euhedral to subhedral tabular to short and prismatic crystals, commonly in subparallel groups. Under the petrographic microscope it has a very high relief. It was named after Edward Sydney Simpson (1875–1939), government mineralogist and analyst of Western Australia. It is an accessory mineral in some tantalum-rich granite pegmatites.".
- Simpsonite label "Simpsonit".
- Simpsonite label "Simpsonita".
- Simpsonite label "Simpsonite".
- Simpsonite label "Simpsonite".
- Simpsonite sameAs Simpsonit.
- Simpsonite sameAs Simpsonita.
- Simpsonite sameAs Simpsonite.
- Simpsonite sameAs m.0ddhtdz.
- Simpsonite sameAs Q408497.
- Simpsonite sameAs Q408497.
- Simpsonite sameAs Simpsonite.
- Simpsonite wasDerivedFrom Simpsonite?oldid=542827159.
- Simpsonite depiction Simpsonite-154999.jpg.
- Simpsonite isPrimaryTopicOf Simpsonite.
- Simpsonite name "Simpsonite".
