1. Glass and Pottery industry
  2. Electrical industry
  3. Steel industry
  4. Textile industry
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Answer: Option 2

Electrical industries uses mica. It is used in paints as a pigment extender and also helps to brighten the tone of coloured pigments. It is a superior insulator. So in the electrical industry it is used as thermal insulation, and in electronic equipment as electrical insulators.

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Where in India is mica mined?
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