Stone is one of the most important items to build structures. There is so much vraiety in stones, based on quality, hardness and other things.
In this article we want to talk about marble, one of the most beautiful stone’s which is also useful for Construction industry worldwide. Iran is one of the countries that has too many marble mines. Due to the unique geography of iran, marble can be found with great variety and different types.
Be with us for more informations about marbles.
How was marble discovered?
Marble is a kind of metamorphic limestone. In fact, limestone in the depths of the earth is subjected to high pressure and heat for a long time and changes. This stone is crystallized and its crystals are visible to the naked eye. The word marble has Greek roots and means brilliant. This stone is quite dense, which makes marble resistant to cold and heat. The main ingredient of this stone is calcium carbonate.
Different types of marble
- most usable marble in world has high calcium
- Transparent marbles that are common are known as attics.
- Hydro-silicate marbles that are used for the manufacture and production of decorative accessories.
Marble is characterized by its high polishing properties. It is mostly used for places such as commercial complexes, hotels and luxury buildings. Marble is very resistant to different weather conditions. But in the face of weather and sun, its transparency is reduced, and it is usually stored and used indoors. One of the unique features of this stone is its high heat capacity. That is, it takes a long time to heat up and then cool down. This has led to the use of marble around the Kaaba, where people have to walk around to perform Hajj rituals, to prevent the parts from heating up too quickly under the scorching sun of Mecca.
Benefits of Marble
- Marble has Highly usage for making decorating objects
- Marble is polishing and eye catching
- Marble has the ability to create engraving on stone
- Being transpicuous
- Being colorful
- Insulation against heat and cold
Defect of marble
- Prolonged moisture causes marble damage
- Acid causes marble to deteriorate
- It becomes opaque with sunlight
Colors of marble
Pure marble is white and transparent and, of course, is rarely found in pure form. Elements and impurities such as aluminum, iron oxide, magnesium and… cause color variation. Iron oxide impurities can turn marble brown, yellow, red, orange, and pink. If iron oxide is so-called hydrated, the color of marble tends to be more brown or yellow. Although iron oxide is anhydrous and high in manganese and coal, marble turns blue, gray, and black. Serpentine also tends to turn marble green. Clay is one of the materials that changes the color of marble to gray. Of course, the amount of impurities and elements in the light or high color of these marbles is effective and effective.
what is usage of marble?
Marble has different usage, that makes it to a worthy stone. In the following we are talking about some of usages of marble
1.building and structure
Marble has had too many usage in old times. This stone has been used in palaces, religious places like mosques and churches and many other places. Taj mahal is one of the beautifulest palaces that have been built by marble.
The beautiful and transparent appearance and the property of justification as well as the proper pre-feeding make this stone one of the practical tools of today’s buildings. It can be used in the construction and decoration of interior and exterior walls of houses.
The transparency and radiance of marble has led to its use in the sculpture industry. Its smoothness, high polishing, as well as easy axing and turning, has made it one of the most important materials in this industry.
Marble is obtained from the transformation of limestone, when it is heated inside the furnace, it is converted to calcium oxide, which is lime. In agriculture, this compound is poured on soils that have increased acidity and reduces the so-called soil acidity. Combining chemical fertilizers with this compound helps to increase the yield of the soil and its products.
Because marble is obtained from the transformation of limestone, when it is heated inside a kiln, it is converted to calcium oxide, which is lime. In agriculture, this compound is poured on soils that have increased acidity and reduces the so-called soil acidity. Combining chemical fertilizers with this compound helps to increase the yield of the soil and its products.
Types of marble mines
The highest quality marbles are in two countries. Ono of them is Iran in and a other one is in Italy.