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- Aenigmatite abstract "Aenigmatite, also known as Cossyrite after Cossyra, the ancient name of Pantelleria, is a sodium, iron, titanium inosilicate mineral. The chemical formula is Na2Fe2+5TiSi6O20 and its structure consists of single tetrahedral chains with a repeat unit of four and complex side branches. It forms brown to black triclinic lamellar crystals. It has Mohs hardness of 5.5 to 6 and specific gravity of 3.74 to 3.85. Aenigmatite forms a solid-solution series with wilkinsonite, Na2Fe2+4Fe3+2Si6O20. Aenigmatite is primarily found in peralkaline volcanic rocks, pegmatites, and granites as well as silica-poor intrusive rocks. It was first described by August Breithaupt in 1865 for an occurrence in the Ilimaussaq intrusive complex of southwest Greenland. Its name comes from αίνιγμα, the Greek word for "riddle". It was also reported from the Kaidun meteorite, possibly a Mars meteorite, which landed on March 1980 in South Yemen. Other notable studied occurrences include: Narsaarsuk and elsewhere in Greenland. The Khibiny and Lovozero alkaline massifs on Kola Peninsula, Russia. The volcanic island of Pantelleria, Italy. In the USA, from Granite Mountain, near Little Rock, Pulaski County, Arkansas, and Santa Rosa, Sonoma County, California. In Australia, from Warrumbungle volcano, Nandewar volcano, and the Mount Warning complex, New South Wales; and the Peak Range Province, Queensland. In Canada, from Mount Edziza, the Ilgachuz and Rainbow Range shield complexes. From Logan Point quarry, Dunedin volcano, New Zealand.↑ ↑ ↑".
- Aenigmatite thumbnail Aenigmatite_-_Mineralogisches_Museum_Bonn2.jpg?width=300.
- Aenigmatite wikiPageID "2491911".
- Aenigmatite wikiPageRevisionID "541439209".
- Aenigmatite 2v "Measured: 27° to 55°".
- Aenigmatite birefringence "δ = 0.090 - 0.100".
- Aenigmatite caption "Aenigmatite from Kangerdluarsuk, Greenland".
- Aenigmatite category Silicate_minerals.
- Aenigmatite cleavage "Good on {010} and {100}".
- Aenigmatite color "Velvet-black".
- Aenigmatite diaphaneity "Translucent to opaque".
- Aenigmatite dispersion "r < v; very strong".
- Aenigmatite formula "Na2Fe2+5TiSi6O20".
- Aenigmatite fracture "Uneven".
- Aenigmatite gravity "3.81".
- Aenigmatite habit "Poorly developed prismatic crystals, occurring as irregular clusters".
- Aenigmatite hasPhotoCollection Aenigmatite.
- Aenigmatite luster "Vitreous to greasy".
- Aenigmatite mohs "5.5".
- Aenigmatite name "Aenigmatite".
- Aenigmatite opticalprop "Biaxial".
- Aenigmatite pleochroism "X = yellow brown; Y = red-brown; Z = dark brown to black".
- Aenigmatite refractive "nα = 1.780 - 1.800 nβ = 1.800 - 1.820 nγ = 1.870 - 1.900".
- Aenigmatite streak "Reddish brown".
- Aenigmatite strunz "9".
- Aenigmatite symmetry "H-M symbol:".
- Aenigmatite symmetry "Space group: P".
- Aenigmatite symmetry "Triclinic pinacoidal".
- Aenigmatite system "Triclinic - pseudomonoclinic".
- Aenigmatite tenacity "Brittle".
- Aenigmatite twinning "Complex by rotation perpendicular to or about [010] of the pseudomonoclinic cell; polysynthetic".
- Aenigmatite unitCell "Z = 2".
- Aenigmatite unitCell "a = 10.415 Å, b = 10.840 Å, c = 8.931 Å;".
- Aenigmatite unitCell "α = 105.107°, β = 96.610°, γ = 125.398°;".
- Aenigmatite subject Category:Inosilicates.
- Aenigmatite subject Category:Iron_minerals.
- Aenigmatite subject Category:Sodium_minerals.
- Aenigmatite subject Category:Titanium_minerals.
- Aenigmatite subject Category:Triclinic_minerals.
- Aenigmatite type Abstraction100002137.
- Aenigmatite type IronMinerals.
- Aenigmatite type Material114580897.
- Aenigmatite type Matter100020827.
- Aenigmatite type Mineral114662574.
- Aenigmatite type Part113809207.
- Aenigmatite type PhysicalEntity100001930.
- Aenigmatite type Relation100031921.
- Aenigmatite type SodiumMinerals.
- Aenigmatite type Substance100019613.
- Aenigmatite type TitaniumMinerals.
- Aenigmatite type TriclinicMinerals.
- Aenigmatite type ChemicalSubstance.
- Aenigmatite type Mineral.
- Aenigmatite type ChemicalObject.
- Aenigmatite type Thing.
- Aenigmatite comment "Aenigmatite, also known as Cossyrite after Cossyra, the ancient name of Pantelleria, is a sodium, iron, titanium inosilicate mineral. The chemical formula is Na2Fe2+5TiSi6O20 and its structure consists of single tetrahedral chains with a repeat unit of four and complex side branches. It forms brown to black triclinic lamellar crystals. It has Mohs hardness of 5.5 to 6 and specific gravity of 3.74 to 3.85. Aenigmatite forms a solid-solution series with wilkinsonite, Na2Fe2+4Fe3+2Si6O20.".
- Aenigmatite label "Aenigmatiet".
- Aenigmatite label "Aenigmatit".
- Aenigmatite label "Aenigmatite".
- Aenigmatite label "Enigmatita".
- Aenigmatite label "Enigmatite".
- Aenigmatite label "Энигматит".
- Aenigmatite label "أينيجماتايت".
- Aenigmatite sameAs Aenigmatit.
- Aenigmatite sameAs Enigmatita.
- Aenigmatite sameAs Aenigmatita.
- Aenigmatite sameAs Enigmatite.
- Aenigmatite sameAs Aenigmatiet.
- Aenigmatite sameAs m.07hmtp.
- Aenigmatite sameAs Q380942.
- Aenigmatite sameAs Q380942.
- Aenigmatite sameAs Aenigmatite.
- Aenigmatite wasDerivedFrom Aenigmatite?oldid=541439209.
- Aenigmatite depiction Aenigmatite_-_Mineralogisches_Museum_Bonn2.jpg.
- Aenigmatite isPrimaryTopicOf Aenigmatite.
- Aenigmatite name "Aenigmatite".
