Natanz black granite stone has a black theme and uniformity in granulation and is extracted from Natanz granite mines in Natanz city, Kashan township, Isfahan province. These stones can be divided into two types according to the mine, one is more colorful or dark black with white halo and streaks, and the other type is black granite with a more uniform and lighter than the first type.
Due to its various colors and textures, black granite is one of the most well-known, high-quality and most widely used building stones in Iran and has always been of special interest to designers and buyers. Natanz black granite is processed in grinded and flimed form. Black granite has various uses in the construction industry due to its high strength and good ductility.
Features of Natanz Black Granite Stone
Natanz black granite, which belongs to the granite family, is known as marble or granite and is a type of acidic internal igneous rock and some other minerals. Depending on the constituent minerals, this stone can be found in a variety of colors, from white and gray.
Natanz Shamsh black granite Stone is generally used in accordance with the standard of the following cases:
• Facade stone includes interior and exterior facades of buildings and structures, includes a variety of paving such as hall and reception paving, kitchen paving, lobby paving, staircase and interior walls of the building.
• Sidewalks, street tables and decorating development plans, Walls and floors of parking lots, courtyards and floors of commercial units, and tombstones
• Separation of slopes and retaining walls,
Proper resistance to cold and heat
Relatively low water absorption
Suitable for grinding
Strong against pressure
Analysis of granite according to the standard of building stones:
|Row||Title||Iranian standard code||Min||Max||granite|
|2||Water absorption rate||ISIRI 5699||0.03||1.50||1%|
|3||Mega Pascal compressive resistance||ISIRI 5698||600||2200||2000|
|4||Abrasion Resistance||ISIRI 5700||2.20||6||6|
|5||Special Weight||ISIRI 5699||1.80||2.80||2.6|