2020 Economy - Minerals, Mining
Consider the following minerals : 1. Bentonite 2. Chromite 3. Kyanite 4. Sillimanite In India, which of the above is/are officially designated as major minerals?
- 1 and 2 only
- 4 only
- 1 and 3 only
- 2, 3 and 4 only
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