The first-ever auction of limestone mineral blocks in the Union Territory of Jammu & Kashmir will be formally launched in Jammu.
About Limestone:
Limestone is a sedimentary rock made of calcium carbonate (CaCO3), usually in the form of calcite or aragonite.
It occurs across almost all geological sequences from Pre-Cambrian to Recent, except in Gondwana formations.
Composition of Limestone:
It contains considerable amounts of magnesium carbonate (dolomite).
It also contains minor constituents of clay, iron carbonate, feldspar, pyrite, and quartz.
In many cases, the grains are microscopic fragments of fossil animal shells that are also present.
Distribution in India:Karnataka has the largest share (28%) of total resources, followed by Andhra Pradesh, Rajasthan, Gujarat, Meghalaya, and Chhattisgarh.
Production Centers: Over three-fourths of India’s limestone is produced in just six states: Andhra Pradesh & Telangana, Rajasthan, Madhya Pradesh, Gujarat, Tamil Nadu, and Karnataka.
Uses of Limestone:
The principal use of limestone is in the Cement Industry.
Metallurgical Processes: It is used as a flux in iron and steel production.
Other Industries: Glass, Ceramic, Paper, Textile, and Tanning
Chemical Production: Calcium carbide, alkali, bleaching powder
Agriculture: It is used as soil conditioning agent and in fertilizer (calcium ammonium nitrate)
Consumer Products: Whiting (chalk and precipitated limestone) in rubber, paint, cosmetics, toothpaste, and shoe polish.
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