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Shanu posted an Question
April 29, 2020 • 20:27 pm 30 points
  • IIT JAM
  • Geology (GG)

Q. the core and rim compositions of garnet are ca3 (fe,75a.90mn 3)alsi,0,, and (fe,9oca,35 (feg90 mn, 75) ai,si,0,,, respectively. the difference in mole fract

60. The core and rim compositions of garnet are Ca3 (Fe,75a.90Mn 3)ALSi,0,, and (Fe,9oCa,35 (Feg90 Mn, 75) AI,Si,0,,, respectively. The difference in mole fractions of spessertine between the (answer in core and the rim is one decimal place).

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    Rahul kumar Best Answer

    Solution: General Formula of spessartine is Mn3Al2Si3O12 Mole fraction of spessartine in core= 1.35/(0.75+0.90+1.35)= 0.45 Mole fraction of spessartine in rim= 0.75/(0.90+1.35+0.75) = 0.25 Difference in mole fraction= 0.45-0.25 = 0.20

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