Limestone industry

kiln used for the calcination of limestone (calcium carbonate) to produce the form of lime called quicklime (calcium oxide)

geological natural monument in Odesa Oblast, Ukraine

type of limestone with hard fine grain

town in South Africa

thumb|250px|Nordkalk Limestone [[quarry at Pargas, Väståboland, Finland.]] Nordkalk is a manufacturer of limestone-based products based in Finland. It operates at more than 30 different locations in Finland, Sweden, Norway, Poland and Estonia.

Carmeuse is a Belgian mining company which produces lime and limestone. The Carmeuse Group has production facilities in Europe, North America and Africa. Its head office is located in Louvain-la-Neuve and the company Chief Executive Officer is Rodolphe Collinet.

network of subterranean mines under Paris, France

soil additive containing calcium carbonate and other ingredients

quarry and lake in Estonia

thumb|The interior of SubTropolis SubTropolis is a business complex located inside of a limestone mine in the bluffs north of the Missouri River in Kansas City, Missouri. It was developed by late Kansas City Chiefs owner Lamar Hunt via Hunt Midwest Real Estate Development, Inc., with the trademarked phrase ''World's Largest Underground Business Complex''.

mine in Hachinohe, Aomori, Japan