Write the names and formulae of two ores of aluminimum
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1)BAUXITE — Al₂O₃.2H₂o
2)DIASPORE— Al₂O₃.H₂O
3)CORUNDUM— Al₂O₃
4)CRYOLITE— Na₃AlF₆
5)ALUNITE— K₂SO₄.Al₂(SO₄)₃.3Al(OH)₃
6)FELDSPAR— K₂O.Al₂O₃.6SiO₂
7) MICA— K₂O.3Al₂O₃.6SiO₂.2H₂O
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