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?

उत्तर देखें और व्याख्या

उत्तर: (D) 2, 3 and 4 only

व्याख्या

Chromite, kyanite and sillimanite are major minerals under the MMDR Act; bentonite is notified as a minor mineral.