Limestone : Coimbatore, Cuddalore,Dindigul, Kanchipuram, Karur, Madurai,Nagapattinam, Namakkal, Perambalur, Ramnathapuram, Salem, Thiruvallur, Tiruchirapalli,Tirunelveli, Vellore, Villupuram
Quartz/silica sand: Chennai, Coimbatore, Cuddalore, Dharmapuri,Dindigul, Erode, Kanchipuram, Karur, Madurai,Namakkal, Periyar, Perambalur, Salem, Thiruvallur ,Thiruvarur,Nagapattinam, Tiruchirapalli,Villupuram,
Virudhunagar & Vellore districts
Bauxite : Dindigul, Namakkal,Nilgiris & Salem districts
Bauxite : Dindigul, Namakkal,Nilgiris & Salem districts
Lignite deposits : Cuddalore,Thanjavur,Thiruvarur, Nagapattinam ,Ramanathapuram
Bentonite - Chengai-Anna district
Reference:
Indian Minerals Yearbook 2012
GOVERNMENT OF INDIA
MINISTRY OF MINES
INDIAN BUREAU OF MINES
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