Andesite is among the extrusive rocks that have nice colours such as purple, magenta, and pinkish. In addition to these colours, there are andesite stones in black and anthracite and grey tones. This colourfulness of the andesite rocks shows the age of the stone, that is, the formation time. The andesite extracted extensively in Ankara is also called Ankara stone. It is frequently used both inside and outside of the buildings since it is a speckled patterned material that is resistant to abrasion, cracking and crashing, and has a non-slip structure.
Andesite is a kind of rock found above the underground shells and zones located there. Magma melting occurs in the region where oceanic plaques descend in order to produce magma source. As soon as the melted magma comes onto the surface, it crystallizes rapidly, and fine-grained rock emerges. This rock formation is called andesite. Andesite has a composition between granite and basalt. This is because their main magma is formed through melting of a certain part of the basaltic ocean plate. When the andesite magma mixes with the magma forming granite or when the granite rocks formed in the region merge by melting as the magma rises, andesite can have a granite additive. Thus, it carries the properties of granite.
As it has been found to be widely used in Anatolian civilizations and is used in many areas today, Andesite has been formed as a result of volcanic movements. In addition to Ankara, andesite has reserves in some Central Anatolian provinces such as Çorum, Kayseri, Isparta, Uşak and Manisa. Andesite having a spotted appearance is preferred in structures since it is quite resistant to abrasion. Being especially used in flooring and wall coverings, andesite can be applied to all or a part of the area. Natural stone used for handicapped ramps available in many buildings and pavements is also preferred frequently on stair steps. Due to its decorative features, andesite is preferred to add aesthetics to architectures. The most important reason why andesite is used so intensely is its beautiful properties. One of these features is that the stone has a non-slip structure. Natural stone, which is preferred as wall cladding due to being heat-insulated, retains coolness in the summer months and heat in the winter months. Since it has naturally different colours, painting is not required. No matter how long it is used, no adversities occur such as fading and yellowing. It is highly resistant to abrasion, crashing, and cracking. It is not affected by weather conditions and temperature changes. Optionally, it can be used with or without polish.
Being among the most preferred decorative stones, andesite has different physical colours. While andesite has a changeable quality depending on where it is extracted, its price also varies. The highest quality and most-obtained andesite is extracted from Ankara. The type and difficulty rate of the application that it is subjected to during the production process also affect the prices. The price of this stone in square meter calculation is different than other natural stones. The price increases as the application area expands. Even prices vary based on the usage area. The reason for this is that different processing applications are made in terms of the area to be used. Even a different process applied on the product changes the price. The factors affecting the price include the colour of the stone extracted, the amount to be used, its size, thickness, whether the polishing process is applied, its shape, and where the production is made. For exact price information, you can contact Granices and have more detailed information.
Andesite Usage Areas
The plates of andesite are used in many areas, especially wall coverings, floor coverings, pavements, and stair steps. Optionally, all or a part of the wall is covered with andesite during the wall coating process. As flooring, it is possible to see it in pavements, pavement coatings, steps and handicap ramps. Thanks to its non-slip structure, it is preferred on ramps, stairs and other inclined surfaces. It is also frequently used in parks and gardens, and products such as benches, garbage cans, flower beds, ornamental pools, coping applications (upper parts of open walls), jambs, and windows. Andesite can be found in areas such as outdoor environments, refuges, garden arrangements, parquet applications, window edges, inner-city furniture, fountains, fireplaces, restaurants, bathhouses, historical buildings, and gutters. Andesite is produced in the form of kerb, plate, or slab, depending on where it will be used. Also, it is among the advantages of using andesite that coating with it does not necessitate paining or colour addition. Thanks to their production in different sizes and dimensions, they can be easily applied in any field. Andesite based on the usage area is produced as elements such as wall cladding plate, paving stone, paving plate, kerb, and kerb edge water gutter.
- Steps & Stairs
- Flooring and Covering
- Wall Covering
- Grill Stone & Barbecue
- Tomb & Fountain
- Grass stone
- Impact and Gutter Stone
- Blasting stone
Where is the Stone Extracted and Found?
- Ankara / Gölbaşı
- İzmir / Bergama
The characteristics of the andesite, which can be found with small differences depending on the place of their extraction, are examined under two separate titles, chemically and technically. This natural stone may contain a small amount of quartz. But it may not also contain any quartz in its content. It is also very rich in iron and magnesium. Its general properties can be listed as follows;
Its specific weight per cm3 is 2.67 g.
It has a porous structure of 16.10%.
The fill rate of the stone is 83.9%.
It displays superior strength with 716 kg / cm2 pressure resistance, 163 kg / cm3 crush resistance, 12 kg / cm2 impact resistance, and 18.1 kg / cm2 abrasion resistance.
Depending on its weight, its water absorption capacity is 6.54%
Porosity is 9.51% and humidity rate is 1.14%.
These properties of andesite may vary slightly depending on the production location and the intensity of the process applied in the companies.
Andesite Properties and Specifications
- Andesite is solid and durable.
- It is non-scratch and abrasive, and cannot be cut.
- It has a high capacity to withstand weights.
- Its surface is not slippery. It has a matte appearance in terms of structure.
- It is available in many different colours.
- It is widely used especially outdoors.
- It is a natural, healthy extrusive rock.
- It is an ideal material for decoration.
- Pavement slabs, floors, and kerbs and their edges are the areas where it is used the most.
- Heat transfer is very low.
- It is not affected by extreme heat and cold.
- No colour fading occurs in the sun.
Technical Analysis and TSE
You can get the TSE Report by contacting us.
- Specific weight is 2.61 gr / cm3
- Fill rate is 83.6%
- Moisture rate is 1.15%
- Pressure resistance is 718 kg / cm2
- Porosity is 9.61%
- Abrasion resistance is 17.1 cm2 / cm2
- Porousness is 16.10%
- Crush resistance is 163 kg / cm3
- Impact resistance is 13 kg / cm2
- Water absorption by weight is 7.54%