Black Scoria

Oxide Analysis Formula Tolerance
CaO 6.02% 0.54
K2O 4.09% 0.22
MgO 4.34% 0.55
Na2O 2.65% 0.22
Al2O3 20.09% 1.00
SiO2 54.37% 4.59
Fe2O3 5.15% 0.16
FeO 2.60% 0.16
LOI 0.69%n/a
Oxide Weight 504.21
Formula Weight 507.72

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