Limestone
Low grade to Cement grade limestone is found extensively at KulithalaiTaluk (Thevarmalai, Melapaguthi, Varavanai, Vellalapatti, Keeranur, Pothuravuthampatti, Kalladai, Kaliyapatti etc., villages), at AravakurichiTaluk (Esanatham, Ammapadi. Alamarathupatti, Thennilai etc., villages) and K.Pitchampatti of Karur Taluk. The limestone is being used at Cement industries, as fillers in the fertilizer and in the cem factories. Presently 30 leases are existing at Karur District.
Magnesite & Dunite quarry
Aravakurchi, Thenilai Latitude 10° 59′ 03.29″ Longitude 77° 53′ 15.57″.
Granite
There are good quality of hard rocks which are particularly available at Kulithalai and Aravakurichi Taluks. But the rocks available at Thogamalai, Naganur, Kalugur and Porunthalur of Kulithalai Taluk are of export worthy and they are being operated for the extraction of granite block both by M/s.TAMIN and private companies.
Quartz and Feldspar
Milky to glassy variety of Quartz and Potash feldspar with an average of 12% potash is the common economic mineral available extensively at Aravakurichi Taluk (Pungambadi-West, Nagampalli, Punjaikalakurichi, Pavithram, Soodamani, Venjamangudalur (East), Aravakurichi, Kodanthur (South), Rajapuram, Kodaiyur etc., villages) less prominently at Kulithalai Taluk (D.Edayapatti, Sengal, Varavanai, Pannapatti, Vadavambadi etc., Villages) and at Karur Taluk (Velliyanai South Village). High grade Quartz is being exported, low grade used in the manufacture of glass and Feldspar in the ceramic and tile manufacturing industries.
Gemstones
Apart from the above good quality of Gem variety such as Ruby (cordierite in the cordierite sillimanite gneiss) and beryl (acquamarine in the pegmatite vein in acicular shapes) are the common man’s hunt at Keeranur, Muthunaickenpatti, Varavanai and Pannapatti villages of KulithalaiTaluk. Other gem variety such glassy crystallised quartz, amythist and moonstone (catsey etc., are also found in this area).
Roughstone
The Charnockite rocks are found to occur in K.Paramathi, Punnam areas etc., of Aravakurichi Taluk which are exploited to produce building materials and road metals.
