What does fayalite mean?
Definitions for fayalite
fay·alite
This dictionary definitions page includes all the possible meanings, example usage and translations of the word fayalite.
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Wiktionary
fayalitenoun
Yellow, olive green, brown or black mineral with orthorhombic crystals of the olivine group, FeSiO.
Webster Dictionary
Fayalitenoun
a black, greenish, or brownish mineral of the chrysolite group. It is a silicate of iron
Etymology: [So called from the island Fayal.]
Wikidata
Fayalite
Fayalite is the iron-rich end-member of the olivine solid-solution series. In common with all minerals in the olivine group, fayalite crystallizes in the orthorhombic system with cell parameters a 4.82 Å, b 10.48 Å and c Å 6.09. Iron rich olivine is a relatively common constituent of acidic and alkaline igneous rocks such as volcanic obsidians, rhyolites, trachytes and phonolites and plutonic quartz syenites where it is associated with amphiboles. Its main occurrence is in ultramafic volcanic and plutonic rocks and less commonly in felsic plutonic rocks and rarely in granite pegmatite. It also occurs in lithophysae in obsidian. It also occurs in medium-grade thermally metamorphosed iron-rich sediments and in impure carbonate rocks. Fayalite is stable with quartz at low pressures, whereas more magnesian olivine is not, because of the reaction olivine + quartz = orthopyroxene. Iron stabilizes the olivine + quartz pair. The pressure and compositional dependence of the reaction can be used to calculate constraints on pressures at which assemblages of olivine + quartz formed. Fayalite can also react with oxygen to produce magnetite + quartz: the three minerals together make up the "FMQ" oxygen buffer. The reaction is used to control the fugacity of oxygen in laboratory experiments. It can also be used to calculate the fugacity of oxygen recorded by mineral assemblages in metamorphic and igneous processes.
Numerology
Chaldean Numerology
The numerical value of fayalite in Chaldean Numerology is: 6
Pythagorean Numerology
The numerical value of fayalite in Pythagorean Numerology is: 7
Translations for fayalite
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- ஃபயலைட்Tamil
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"fayalite." Definitions.net. STANDS4 LLC, 2024. Web. 25 Apr. 2024. <https://www.definitions.net/definition/fayalite>.
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