Limestone, commonly known as chuna in Hindi, is a type of sedimentary rock. The use of limestone as a building material is profound. It is also a popular ingredient in the chemical industry for the production of lime.

The major ways of formation of limestone are either through evaporation or with the help of living organisms. The main constituents of limestone are marine organisms like molluscs, forams, and corals. Crystal forms of the compound calcium carbonate like calcite and aragonite are the major minerals that make limestone.

Limestone has been mentioned in the Ayurveda for its various health benefits. Maharishi Bhagbata in his scripture ‘Ashtanga Hridayam’ mentioned that limestone could be used to cure about seventy diseases in human beings.

Several therapies also recommend the use of limestone for the abundant minerals present in it. A rich source of calcium, limestone has numerous benefits which have been discussed in this article.

Some basic facts about limestone

• Chemical Name: Calcium carbonate
• Chemical Formula: CaCO3
• Common Name: Chuna, limestone
• Mostly found: In coastal areas, near the seashore

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