The process of marble quarrying and processing is an art that feeds one of the strongest industries in the world: marble industry.
Marble is gestated in the mountains to become part of our lives in architectural and cultural works. In addition, it is part of the best homes in floors, countertops and walls in which the luxury and elegance that only the warmth of this material can bring.
Characteristics of marble
Marble is a high quality, elegant and sophisticated material. One of the best in the world is the famous white marble from Carrara, Italy. Another Spanish white marble with denomination of origin and excellent quality is the one from Macael. It is so striking that the town has come to be known as “the city of white gold”.
The process of marble extraction, its finishing and treatment in the industry determine to a great extent the resistance of the material. It is not superfluous to add that marble structures, countertops and sculptures have remained unchanged since as far back as Roman times. The high durability of marble is enhanced with good maintenance, avoiding the use of corrosive products so that it looks as beautiful as the first day.
How is the marble extraction process?
Regarding the marble elaboration process, it is important to know that marble is formed from carbonate rocks by metamorphism that, at high pressures and temperatures, reach a great crystallization. More than 90% of the rock is calcium carbonate, with minority elements that give it the variety of colors and its beautiful characteristic veining.
The marble industry extracts the material from the mountain outcrops. Extracting the natural stone in the quarry is a titanic feat. It can be done by drilling and drilling bits, isolating rectangular blocks, or by diamond wires that literally cut through the mountain. The first thing that results is the cake, whose volume is not standard and is taken to a cutting area to generate blocks. The blocks, ranging in size from 5 to 7 cubic meters, are stored in a quarry yard.
How are the marble slabs created?
The blocks pass through industrial machines called looms. These powerful machines cut the blocks with diamond saws and pressurized water. The blocks are turned into slabs (in a process that lasts from 8 to 16 hours) with a minimum thickness of 2 centimeters.
They are then guided to a drying kiln. When the boards are dry, they are reinforced by means of a mesh glued with a resin to the back of the board. In this way they are handled comfortably without breaking. The industry always takes care of the good quality of the boards.
The material is caulked to remove the pores of the natural stone and any possible cracks in the slab, as it is a natural product. The marble slab is introduced into a polishing machine equipped with rotating heads and diamond tools that polish it leaving a shiny appearance, this process is important because it gives the natural stone that majesty and brightness so characteristic of marble, leaving it ready to enter the sales chain and can be transformed into tables, floors, walls, etc…
Does the extraction process influence the quality of marble?
The uses of marble are remarkably widespread in the construction industry and art. Its varied colors and different textures promote creativity in interior and exterior designs. But all this would not be possible without an adequate extraction system, which allows to obtain this element while preserving as many of its magnificent natural characteristics as possible.
The extraction process of marble has a great influence on the final qualities of the stone, and it is undoubtedly a part of the life of this material that must be taken into account when choosing it as much as the quality provided by its quarry of origin. Good workmanship at the source of an element like this is key, and it is not something that can be solved a posteriori. Remember: stone is forever.