Istrian Stone, a Croatian limestone, was used to build the foundations of Venice, Italy.
Every country has its fame, and Croatia is a country famous worldwide for its unique geography. A significant part of Croatia’s landscape is made up of limestone, a sedimentary rock composed largely of calcium carbonate (calcite). Croatian limestone is also known as karst, a term used to characterize the highlands of the country’s arid landscape. The most famous karst landscape, defined by fractured Croatian limestone plains, is the Dinaric Karst. The Dinaric Karst is an extensive landscape formation that occupies a wide zone measuring 100 kilometers along the northeast coast of the Adriatic Sea.
Limestone is extracted from the soil.
Croatia has three main regions lining the rocky coastline in this area: Istria, Dalmatia and the North Coast. Croatian limestone found along this zone is considered classic karst, belonging to the Cretaceous and Jurassic periods, with average thicknesses of 1.24 to 1.86 miles (2-3 kilometers) thick and 0.6 to 1.24 miles thick. (1-2 kilometers) thick, respectively.
The columns of the White House are made of Croatian limestone.
As a sedimentary rock, limestone is formed over a long period of time through the layering of sediments. Through heat and pressure, loose pieces of silt, minerals and shells, among other things, are compressed into a unique conglomeration. The main source of calcium carbonate in Croatian limestone is the shells of marine organisms. Pure limestone appears to have a white or off-white color. Rock is easy to cut and carve, making it an ideal material for elaborate carvings. However, Croatian limestone is also heavy to harvest and therefore considered an expensive market commodity.
In general usage, limestone is found as a catalyzing material in industrial work, used to increase the rate of hardening in mortar, gypsum and cement. Often the solid foundation of roads contains limestone as an aggregate. Toothpaste and glass can contain limescale sediment, and limestone is also used in gardening to neutralize overly acidic soil.
Croatia’s extensive karst landscapes are unique in the country, simply because of the size of the formations. The landscape has created unique environments for a variety of flora and geological formations, such as rivers, waterfalls, and underground caverns and caverns. Although limestone is durable and heavy, it is also porous, making its landscape formations one of the best oil reservoirs in the world.
Croatian limestone has also lent its properties to architectural inspiration. Limestone from Croatia has been an important part of many Croatian and European structures for millennia. The first Roman quarries were found along the coast and areas such as Istria and the island of Brac provided tonnes of limestone to projects around the world in the past, and continue to do so today.
A type of Croatian limestone called “Istrian Stone” or Kirmenjak was exported to Italy to literally build the foundations of the city of Venice. This hard limestone is often mistaken for marble. Kirmenjak is particularly resistant to water, making it perfect for the foundation of an underwater city. The same hard limestone is used to pave the famous streets of Dubrovnik on the Dalmatian coast. The White House in Washington, DC also used a type of Croatian limestone to help build its white columns. However, because limestone is partially soluble in acid, similar buildings that contain limestone and are found in heavily polluted cities are susceptible to damage if acid rain forms there.