1.

The composition of mica is

Answer»

`NaAlSiO_4.3H_(2)O`
`K_(2)O.3Al_(2)O_(3).6SiO_(2).2H_(2)O`
`K_(2)Hal(SiO_4)_3`
`NaK.SiO_4. 10H_(2)O`

Solution :‘MICA’ is mixture of potassium, ALUMINIUM, silicon oxides


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