The Spaniards who reached the New World around end of the XV century or towards the beginning of the XVI century, guided by Christopher Columbus, used for the buildings of their new settlements and the main social buildings, a limestone which, even today, can be found in abundance in the Dominican Republic and Colombia, denominated the Coral Stone.
Technological breakthroughs in the stone industry tend to be few and improvements in machinery performance are usually a gradual process.
Teresa González Díez (firstname.lastname@example.org)
There are few people who would not like to have in their house some corner where natural stone is the main protagonist: a staircase, the floor of a living room, a chimney, the corner of the barbecue, or, more commonly, the counter-tops of a bathroom and the kitchen.
Of the hundreds, indeed, thousands, of different varieties of natural stone that are being extracted, processed and commercialised in the world, there are actually very few materials that have carved out their own brand name and are easily recognisable and whose name is familiar even to those who do not strictly work in the natural stone industry.
Sandstone, as the name spells, is a rock formed of sand or quartz grains tightly pressed together and cemented by variety of materials like silica, iron, lime etc. The grain size, strength, kind of cementing material and compactness determine its density, permeability and the use. The colour of sandstone depends on cementing materials viz.