FUSED SPINEL AM65,70,85 and 90 FUSED SPINELITEMUNITBRANDS AM-70AM-65AM-85AM90ChemicalcompositionAl2O3%71-7663-6882-8788-92MgO%22-2731-3512-178-12CaO2%0.65max0.80max0.50max0.40maxFe2O3%0.40max0.40max0.40max0.40maxSiO2%0.40max0.50max0.40max0.25maxNaO2%0.40max0.50max0.50max0.50maxBulk Density g/cm33.2min3.3min3.3min3.3min Fused Spinel AM 65,70,85 and 90