Bauxite
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Frequency | common |
---|---|
Hardness | 3.5 |
Density | 3.04 |
Chemical Formula | Al(OH)3.AlO(OH) |
Core Elements | Al, Si, Fe |
Bauxite is the primary ore of aluminum. It contains 30-55% aluminum oxide, the remaining fraction being a mixture of silicon dioxide, hematite and magnetite.