Compounds in Crust of Earth tutorial
The 10 Most Abundant Compounds in the Earth's Crust
Compound
Formula
Abundance by weight
silicon dioxide
SiO
2
42.86%
magnesium oxide
MgO
35.07%
iron(II) oxide
FeO
8.97%
aluminum oxide
Al
2
O
3
6.99%
calcium oxide
CaO
4.37%
sodium oxide
Na
2
O
0.45%
iron(III) oxide
Fe
2
O
3
0.36%
titanium dioxide
TiO
2
0.33%
chromium(III) oxide
Cr
2
O
3
0.18%
manganese(IV) oxide
MnO
2
0.14%
Total
99.72%
4
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