Onyx is a metamorphic rock composed of limestone metamorphism, the main mineral of which is the most stable form of calcium carbonate. This mineral has large and distinct crystals or in the form of granular masses, the most prominent feature of which is the passage of light through it due to its high purity and transparency (unlike marble). For this reason, the price of this stone is higher than other stones and they also have a very high beauty, shine and transparency.
Onyx is the best and most expensive building and decorative stone in the world, which is available in the various colors and natural designs. This stone is generally used in the walls and interior of the building. This stone can also be used in floors and interior walls.