A look into properties of Indian limestone slabs
Posted on May 5, 2015
What is the first building material that comes to your mind after hearing the word Indian natural stones? For most exotic builders, it would be a marble. For those who understand the market of the natural stones, Indian limestone will always be the top product from the sub-continent. Indian limestone slabs are known for their strength and longevity.
Only a few natural stone varieties can match the physical properties of the Indian limestone slabs. Other than its robust durability and material strength, the limestone slabs are also used for decorative purposes. Modern day sculpting, statue making, restoration of historic monuments and building of designer residential rooms rely a lot on the quality and quantity of the top-grade Indian limestone tiles, blocks and slabs. Contemporary limestone slabs are chiselled for the sake of maintaining their natural gradient and smooth finish. In countries, where limestone slab making is still in its nascent stage, the gradient is inconsistent and non-uniform owing to the use of electrical and mechanical saw machines. It renders a very poor finish and that is the major reason why international clients heavily rely on the wholesalers of the Indian limestone slabs obtained from the quarrying of natural stones.
Appearance of the Indian Limestone Slabs
Indian limestone slabs have a rather rough and earthy appearance. It instantly connects with the mood and taste of the clients who prefer to buy them over other exotic natural stones like marbles, granite, sandstone, slatestone and quartzite. The very reason that the limestone slabs dug exported from India are chiselled, they can be catalogued into a multitude of designer tiles, slabs and claddings.
What are the common grains associated with the Indian limestone slabs?
The common grains of the Indian limestone slabs are based on the mode of chemical precipitation that gets deposited. They are classified as:
– Calcite oraragonite
– Oolitic limestone slabs
Speleotherms are found mostly in deep caves where they take the form of stalagmites and stalactites. Granular structures are quite evident in the Indian limestone slabs derived from the oolite varieties.
Carbonate Grains found in the Limestone
Limestone pavements are world famous tiling structures that come with a natural look. They are formed from the skeletal remains of fossilized organisms. The Indian limestone slabs are basically a sedimentary type of rock largely comprising of coral remains and foraminifera. They are a grainy structure made of compounds of carbonates and calcites.
Other carbonate grains that are part of the Indian limestone slabs are Ooids, Intraclasts and Extraclasts. Aragonites are the shell-like structures that are primarily found in the Indian limestone slabs.
Common Impurities in Indian Limestone Slabs
What imparts the Indian limestone slabs with its scintillating features and engrossing colours are actually oxides and impurities. Silica, sand particles and iron impurities are also present in variable amounts. Chert are also known to give the limestone slabs they vivid pattern. Together with flint, jasper and chalcedony, the various organisms that are engraved in the sedimentary rocks form an intricate system of beautiful structures. Other common impurities that are found in Indian limestone slabs are quartz, sandstone, dolomite and Clastic sand particles.