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- Aegirine abstract "Aegirine is a member of the clinopyroxene group of inosilicates. Aegirine is the sodium endmember of the aegirine-augite series. Aegirine has the chemical formula NaFeSi2O6 in which the iron is present as Fe3+. In the aegirine-augite series the sodium is variably replaced by calcium with iron(II) and magnesium replacing the iron(III) to balance the charge. Aluminium also substitutes for the iron(III). It is also known as acmite, which is a fibrous, green-colored variety.Aegirine occurs as dark green monoclinic prismatic crystals. It has a glassy luster and perfect cleavage. The Mohs hardness varies from 5 to 6 and the specific gravity is 3.2 to 3.4.Commonly occurs in alkalic igneous rocks, nepheline syenites, carbonatites and pegmatites. Also in regionallymetamorphosed schists, gneisses, and iron formations; in blueschist facies rocks, and from sodium metasomatism in granulites. It may occur as an authigenic mineral in shales and marls. It occurs in association with potassic feldspar, nepheline, riebeckite, arfvedsonite, aenigmatite, astrophyllite, catapleiite, eudialyte, serandite and apophyllite.Localities include Mont Saint-Hilaire, Quebec, Canada; Kongsberg, Norway; Narsarssuk, Greenland; Kola Peninsula, Russia; Magnet Cove, Arkansas, USA; Kenya; Scotland and Nigeria. It was first described in 1835 for an occurrence in Rundemyr, Øvre Eiker, Buskerud, Norway. Aegirine was named after Ægir, the Teutonic god of the sea. A synonym for the mineral is acmite (from Greek ἀκμή "point, edge") in reference to the typical pointed crystals.".
- Aegirine thumbnail 8336M-aegirine.jpg?width=300.
- Aegirine wikiPageExternalLink aegirine.htm.
- Aegirine wikiPageID "2054659".
- Aegirine wikiPageRevisionID "576893630".
- Aegirine 2v "Measured: 60° to 90°, Calculated: 68° to 84°".
- Aegirine birefringence "δ = 0.037 - 0.061".
- Aegirine caption "Monoclinic crystal of aegirine with orthoclase, from Mount Malosa, Zomba District, Malawi".
- Aegirine category Pyroxene.
- Aegirine category Silicate_minerals.
- Aegirine cleavage "Good on {110}, ^ ≈87°; parting on {100}".
- Aegirine color "Dark Green, Greenish Black".
- Aegirine diaphaneity "Translucent to opaque".
- Aegirine dispersion "moderate to strong r > v".
- Aegirine formula "3".
- Aegirine fracture "Uneven".
- Aegirine gravity "3.5".
- Aegirine habit "Prismatic crystals may be in sprays of acicular crystals, fibrous, in radial concretions".
- Aegirine hasPhotoCollection Aegirine.
- Aegirine imagesize "250".
- Aegirine luster "Vitreous to slightly resinous".
- Aegirine mohs "6".
- Aegirine molweight "231".
- Aegirine name "Aegirine".
- Aegirine opticalprop "Biaxial".
- Aegirine pleochroism "X = emerald green, deep green; Y = grass-green, deep green, yellow; Z = brownish green, green, yellowish brown, yellow".
- Aegirine refractive "nα = 1.720 - 1.778 nβ = 1.740 - 1.819 nγ = 1.757 - 1.839".
- Aegirine streak "Yellowish-grey".
- Aegirine strunz "9".
- Aegirine symmetry "Monoclinic 2/m".
- Aegirine system "Monoclinic Prismatic".
- Aegirine tenacity "Brittle".
- Aegirine twinning "Simple and lamellar twinning common on {100}".
- Aegirine unitCell "a = 9.658 Å, b = 8.795 Å, c = 5.294 Å, β = 107.42°; Z=4".
- Aegirine wordnet_type synset-mineral-noun-1.
- Aegirine subject Category:Inosilicates.
- Aegirine subject Category:Iron_minerals.
- Aegirine subject Category:Monoclinic_minerals.
- Aegirine subject Category:Pyroxene_group.
- Aegirine subject Category:Sodium_minerals.
- Aegirine type Abstraction100002137.
- Aegirine type IronMinerals.
- Aegirine type Material114580897.
- Aegirine type Matter100020827.
- Aegirine type Mineral114662574.
- Aegirine type MonoclinicMinerals.
- Aegirine type Part113809207.
- Aegirine type PhysicalEntity100001930.
- Aegirine type Relation100031921.
- Aegirine type SodiumMinerals.
- Aegirine type Substance100019613.
- Aegirine type ChemicalSubstance.
- Aegirine type Mineral.
- Aegirine type ChemicalObject.
- Aegirine type Thing.
- Aegirine comment "Aegirine is a member of the clinopyroxene group of inosilicates. Aegirine is the sodium endmember of the aegirine-augite series. Aegirine has the chemical formula NaFeSi2O6 in which the iron is present as Fe3+. In the aegirine-augite series the sodium is variably replaced by calcium with iron(II) and magnesium replacing the iron(III) to balance the charge. Aluminium also substitutes for the iron(III).".
- Aegirine label "Aegirien".
- Aegirine label "Aegirin".
- Aegirine label "Aegirine".
- Aegirine label "Aegirine".
- Aegirine label "Egirina".
- Aegirine label "Egirina".
- Aegirine label "Egirina".
- Aegirine label "Egiryn".
- Aegirine label "Эгирин".
- Aegirine label "أجيراين".
- Aegirine label "エジリン輝石".
- Aegirine sameAs Aegirin.
- Aegirine sameAs Αιγιρίνης.
- Aegirine sameAs Egirina.
- Aegirine sameAs Aegirina.
- Aegirine sameAs Aegirine.
- Aegirine sameAs Egirina.
- Aegirine sameAs エジリン輝石.
- Aegirine sameAs Aegirien.
- Aegirine sameAs Egiryn.
- Aegirine sameAs Egirina.
- Aegirine sameAs m.06hx5z.
- Aegirine sameAs Q380674.
- Aegirine sameAs Q380674.
- Aegirine sameAs Aegirine.
- Aegirine wasDerivedFrom Aegirine?oldid=576893630.
- Aegirine depiction 8336M-aegirine.jpg.
- Aegirine isPrimaryTopicOf Aegirine.
- Aegirine name "Aegirine".
