Aegirine is an Silicate minerals member of the clinopyroxene group. Aegirine is the sodium endmenber 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 occurs as dark green monoclinic prismatic crystals. It occurs in alkali nepheline syenites and similar igneous rocks. Localities include Mont Saint-Hilaire, Quebec, Canada; Kongsberg, Norway; Narsarssuk, Greenland; Kola Peninsula, Russia; Magnet Cove, Arkansas, USA; Kenya; Scotland and Nigeria. Aegirine was named after the Teutonic god of the sea. A synonym for the mineral is ''acmite'' (from Greek) in reference to the typical pointed crystals. ==External links== *[http://www.mindat.org/min-31.html Mindat] *[http://webmineral.com/data/Aegirine.shtml Webmineral] *[http://mineral.galleries.com/minerals/silicate/aegirine/aegirine.htm Mineral Galleries] Silicate minerals
See other meanings of words starting from letter:
Words begining with Aegirine:
Aegirine
Aegirine
Aegirine is an Silicate minerals member of the clinopyroxene group. Aegirine is the sodium endmenber 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 occurs as dark green monoclinic prismatic crystals. It occurs in alkali nepheline syenites and similar igneous rocks. Localities include Mont Saint-Hilaire, Quebec, Canada; Kongsberg, Norway; Narsarssuk, Greenland; Kola Peninsula, Russia; Magnet Cove, Arkansas, USA; Kenya; Scotland and Nigeria. Aegirine was named after the Teutonic god of the sea. A synonym for the mineral is ''acmite'' (from Greek) in reference to the typical pointed crystals. ==External links== *[http://www.mindat.org/min-31.html Mindat] *[http://webmineral.com/data/Aegirine.shtml Webmineral] *[http://mineral.galleries.com/minerals/silicate/aegirine/aegirine.htm Mineral Galleries] Silicate minerals
See other meanings of words starting from letter:
A
AB | AC | AD | AE | AF | AG | AH | AI | AJ | AK | AL | AM | AN | AO | AP | AR | AS | AT | AU | AW | AX | AY | AZ |Words begining with Aegirine:
Aegirine
Sponsored links: praca.
These materials are based on Wikipedia and licensed under the GNU FDL
YouTube.com videos better site than Turbo Tax 2007
