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Option 4 : All of the above
The correct answer is All of the above.
- Gypsum, Rock-phosphate and- Pyrites are fertilizer minerals of Rajasthan.
- They are essential for the manufacturing of Cement.
- Gypsum - Ammonium Sulphate chemical fertilizer is formed.
- Rock Phosphate - Super Phosphate, Dye Calcium Phosphate, Dye Ammonium Sulphate.
- Pyrite - Chemical Fertilizer synthesis.
- Rajasthan Mines & Minerals - Rajasthan has deposits of 79 different types of major and minor minerals.
- Out of these, 57 minerals are being currently mined.
- Rajasthan is the leading producer of:
- Zinc
- Feldspar
- Wollastonite
- Silver
- Rock Phosphate
- Gypsum
- Red Ochre
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