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- Nyerereite abstract "Nyerereite is a very rare sodium calcium carbonate mineral with formula Na2Ca(CO3)2. It forms colorless, platey pseudohexagonal orthorhombic crystals that are typically twinned. It has a specific gravity of 2.54 and indices of refraction of nα=1.511, nβ=1.533 and nγ=1.535. Nyerereite is not stable in contact with the atmosphere and rapidly breaks down. Collection specimens must be kept in a sealed argon environment.It has a Hermann–Mauguin notation of mm2 and the respective space group is Cmc21. In nature Nyerereite is naturally twinned and is pseudohexagonal with triad twinning; meaning that this is a six sided crystal that apparently has a hexagonal shape but is not in the hexagonal system. Triad twinning is the intergrowth of three orthorhombic crystals that turn at their center and form hexagonally shaped crystals. Nyerereite is biaxial negative, and has a 2v of 29 degrees. It shows a center acute bisectrix and a birefringence of approximately 0.023. At high temperatures or just erupted lava nyerereite is uniaxial and shows an interference color of second order blue when twinning is not present, and when twinning is there the interference color of nyerereite is first order grey.".
- Nyerereite wikiPageID "4200344".
- Nyerereite wikiPageLength "5516".
- Nyerereite wikiPageOutDegree "33".
- Nyerereite wikiPageRevisionID "679401292".
- Nyerereite wikiPageWikiLink Argon.
- Nyerereite wikiPageWikiLink Bisection.
- Nyerereite wikiPageWikiLink Bisectrix.
- Nyerereite wikiPageWikiLink Calcium.
- Nyerereite wikiPageWikiLink Carbon.
- Nyerereite wikiPageWikiLink Carbonate.
- Nyerereite wikiPageWikiLink Carbonate_mineral.
- Nyerereite wikiPageWikiLink Carbonate_minerals.
- Nyerereite wikiPageWikiLink Carbonatite.
- Nyerereite wikiPageWikiLink Category:Carbonate_minerals.
- Nyerereite wikiPageWikiLink Category:Julius_Nyerere.
- Nyerereite wikiPageWikiLink Crystal_twinning.
- Nyerereite wikiPageWikiLink Gregoryite.
- Nyerereite wikiPageWikiLink Hermann–Mauguin_notation.
- Nyerereite wikiPageWikiLink Hexagon.
- Nyerereite wikiPageWikiLink Hexagonal.
- Nyerereite wikiPageWikiLink Hexagonal_crystal_system.
- Nyerereite wikiPageWikiLink Intrusion.
- Nyerereite wikiPageWikiLink Intrusive.
- Nyerereite wikiPageWikiLink Julius_Nyerere.
- Nyerereite wikiPageWikiLink Kola_Peninsula.
- Nyerereite wikiPageWikiLink Lava.
- Nyerereite wikiPageWikiLink Mineral.
- Nyerereite wikiPageWikiLink Ol_Doinyo_Lengai.
- Nyerereite wikiPageWikiLink Orthorhombic.
- Nyerereite wikiPageWikiLink Orthorhombic_crystal_system.
- Nyerereite wikiPageWikiLink Oxygen.
- Nyerereite wikiPageWikiLink Pirssonite.
- Nyerereite wikiPageWikiLink Pseudohexagonal.
- Nyerereite wikiPageWikiLink Pseudomorph.
- Nyerereite wikiPageWikiLink Refractive_index.
- Nyerereite wikiPageWikiLink Russia.
- Nyerereite wikiPageWikiLink Sodium.
- Nyerereite wikiPageWikiLink Specific_gravity.
- Nyerereite wikiPageWikiLink Tanzania.
- Nyerereite wikiPageWikiLinkText "Nyerereite".
- Nyerereite wikiPageWikiLinkText "nyerereite".
- Nyerereite 2v "Measured: 29°".
- Nyerereite birefringence "δ = 0.023".
- Nyerereite category Carbonate_mineral.
- Nyerereite category Carbonate_minerals.
- Nyerereite color "Colorless".
- Nyerereite diaphaneity "Transparent".
- Nyerereite formula "Na2Ca2".
- Nyerereite gravity "2.541".
- Nyerereite habit "Platey, pseudo-hexagonal".
- Nyerereite hasPhotoCollection Nyerereite.
- Nyerereite name "Nyerereite".
- Nyerereite opticalprop "Biaxial".
- Nyerereite refractive "nα = 1.511 nβ = 1.533 nγ = 1.535".
- Nyerereite streak "White".
- Nyerereite strunz "5".
- Nyerereite system "Orthorhombic - Pyramidal H-M Symbol Space Group: C mc21".
- Nyerereite twinning "Always polysynthetically twinned parallel to [001]".
- Nyerereite wikiPageUsesTemplate Template:Infobox_mineral.
- Nyerereite subject Category:Carbonate_minerals.
- Nyerereite subject Category:Julius_Nyerere.
- Nyerereite type ChemicalSubstance.
- Nyerereite type Mineral.
- Nyerereite type ChemicalObject.
- Nyerereite type Thing.
- Nyerereite type Q7946.
- Nyerereite comment "Nyerereite is a very rare sodium calcium carbonate mineral with formula Na2Ca(CO3)2. It forms colorless, platey pseudohexagonal orthorhombic crystals that are typically twinned. It has a specific gravity of 2.54 and indices of refraction of nα=1.511, nβ=1.533 and nγ=1.535. Nyerereite is not stable in contact with the atmosphere and rapidly breaks down.".
- Nyerereite label "Nyerereite".
- Nyerereite sameAs Nyerereíta.
- Nyerereite sameAs Nyerereite.
- Nyerereite sameAs Nyerereitt.
- Nyerereite sameAs m.0bpm7s.
- Nyerereite sameAs Q3879976.
- Nyerereite sameAs Q3879976.
- Nyerereite wasDerivedFrom Nyerereite?oldid=679401292.
- Nyerereite isPrimaryTopicOf Nyerereite.
- Nyerereite name "Nyerereite".