fayalite sentence in Hindi
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- In addition, fayalite can react with oxygen to form magnetite:
- Fayalite ( Fe 2 SiO 4 ) is the most common mineral in ancient slag.
- Iron-rich olivine ( fayalite ) favors production of magnetite-magnesite-silica compositions.
- Such is the case, for example, with the olivine ( forsterite-fayalite ) system.
- For example, monticellite and pyroxene would form when fayalite can not take more CaO into it.
- The olivine is a solid solution of 11 to 40 % fayalite with the rest being forsterite.
- The silicon in the sand reacts with the wustite to form fayalite, which melts just below the welding temperature.
- Moreover, gas atmosphere in early furnaces is much less reducing and fayalite may not be able to form in this condition.
- If an olivine composition contains sufficient fayalite, then olivine plus water can completely metamorphose to serpentine and magnetite in a closed system.
- Fayalite can also react with oxygen to produce magnetite + quartz : the three minerals together make up the " FMQ " oxygen buffer.
- Forsterite has an unusually high melting temperature at atmospheric pressure, almost, but the melting temperature of fayalite is much lower ( about ).
- Fayalite is stable with quartz at low pressures, whereas more magnesian olivine is not, because of the reaction olivine + quartz = orthopyroxene.
- Therefore, the gas atmosphere in furnace can be calculated through the ratio of magnetite / fayalite in slag ( Hauptmann 2007, 22 ).
- Green sand for aluminum typically uses olivine sand ( a mixture of the minerals forsterite and fayalite, which is made by crushing dunite rock ).
- In this reducing environment, the silicon in the clay reacts with wustite to form fayalite and, at around, the fayalite will become a liquid.
- In this reducing environment, the silicon in the clay reacts with wustite to form fayalite and, at around, the fayalite will become a liquid.
- Through the shape of fayalite, cooling rates of the slag can be roughly estimated ( Donaldson 1976, cited in Etller et al . 2009 ).
- In the olivine structure, the main olivine series of ( Mg, Fe ) 2 SiO 4 consist of magnesium-rich forsterite and iron-rich fayalite.
- The temperature at which the liquidous phases crystallize in a sequence : mullite + tridymite, followed by sekaninaite and finally fayalite + clinoferrosilite ( Grapes, 2010 ).
- Because iron ( II ) ions were oxidized in the Stromboli magma, little iron ( II ) was available to form Fe-rich olivine ( fayalite ).
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