Limestone deposit in Nigeria is majorly deposited in Cross River and Ebonyi states but can still be found in commercial deposit in Abia, Akwa Ibom, Anambra, Bauchi, Bayelsa, Benue, Borno, Edo, Enugu, Imo, Ogun, Ondo and Sokoto, making Nigeria the most richly deposited West African country when it comes to Limestone.

This is one of the mineral deposits in Nigeria that is of great proportion but it is not renewable, and unlike some of these minerals, limestone is processed and quarried by various local and international construction companies in Nigeria.
Quarrying of limestone in Nigeria

Some of limestone quarrying companies include but is not limited to Rich Quarries Nigeria Limited, Crushed Rock Industries and Stonehill Nigeria Limited, as there are more than hundreds of quarrying companies in Nigeria located in the various states where it is deposited in.

Limestone quarrying is of great benefit as it can be used in various applications but it also has its own disadvantages.

The blasting and quarrying of limestone or other forms of sedimentary rocks in Nigeria or other parts of Africa and the world can seriously lead to a permanent disfiguration of the environment, noise pollution and disturbance from the blasting, and maybe in severe cases can even lead to earthquake due to continues shaking of the earth-crust.

Some Limestone Mining/Exploration Operators in Nigeria

. Amstrade Ventures Limited

. Blontel Limited

. Dangotte Limited

. Gamla Nigeria Limited

. Africem Quarries Limited

. ENL Consortium Limited

. Josimog International Ventures Limited

. Xath Resources Limited

. Gatamitech Nigeria Limited

. Ibeto Cement Company Limited

. Julius Berger Nigeria Plc

. West African Portland Cement Plc

. Bua International Limited

. LafargeHolcim etc.

Prices of limestone in Nigeria market

In the local market, limestone is sold at N350 per 50kg bag. This price is negotiable and fluctuates depending on the potential buyers and available bidders.

In the foreign scene, $12 and $56 are the ranges of the prices of limestone coming from Nigeria.

Prices of limestone in Nigeria market

In the local market, limestone is sold at N350 per 50kg bag. This price is negotiable and fluctuates depending on the potential buyers and available bidders.

In the foreign scene, $12 and $56 are the ranges of the prices of limestone coming from Nigeria.

The chief chemical constituents of Portland cement are as follows:
Limestone (CaO) 60 to 67%
Silica (SiO2) 17 to 25%
Alumina (Al2O3) 3 to 8%
Iron oxide (Fe2O3) 0.5 to 6%
Magnesia (MgO) 0.1 to 4%
Sulphur trioxide (SO3) 1 to 3%
Soda and/or Potash (Na2O+K2O) 0.5 to 1.3%

https://www.finelib.com/about/nigeria-natural-resources/limestone-deposits-in-nigeria-its-uses-and-locations/69
https://theconstructor.org/concrete/ordinary-portland-cement/23181/
If Limestone is this cheap why is cement expensive?