LIMESTONE:
Considerable reserve of limestone is reported to be available in Peevandi and Sunnambur Villages of Melur Taluk, Kiliyorpatti in Madurai South Taluk and Thirumal Village in Thirumangalam Taluks. The total deposit available in these areas has been estimated at 10.31 million tonnes. M/s Tamil Nadu Cement the total Lime stone exploitation was reported at 5 lakh M.T
Quality granite is found in Kilavalavu, area of Melur Taluk in Madurai district, TN. They are having White and grey background mixed with orange color dots, blue wavy movement Variation with grey and white background.
GRAPHITE
Substantial amount of graphite has been reported to have occurred at Urappanur and Pennamangalam villages of Thirumangalam Taluk, Kallithur Village of Usilampatti Taluk and Keeranur village in Melur Taluks. The deposit in these villages has been estimated at 17.5 million tonnes valued at Rs. 437.5 crores.
QUARTZ:
Quartz is another mineral found in Peevanur village of Melur Taluk; however, total occurrence has not been estimated.
FELDSPAR:
Yet another mineral found in moderate quantity in Madurai district is feldspar.
BLUE METAL JELLY:
Blue metal jelly occurs mostly in Sedapatti, Kottampatti, and Melur blocks of Madurai district. They are mainly used for construction and road laying purposes.
GRAVAL
Graval occurs in Melur, Sedapatti and Usilampatti areas. They are mainly used as filling material.
Content Courtesy: Brief Industrial Profile of Madurai District, MSME-Development Institute, Chennai