Description
Onyx Marble
This type of stone is used primarily as an ornamental stone for stairways, facades, columns, and flooring.
In terms of color diversity, Iran and Italy have the best marble mines in the world.
It is due to the presence of magnesium, aluminum, and iron salt that these colors can appear so diverse.
Its color is brown or yellow if it contains hydrated iron oxide.
Dehydrated or dehydrated iron oxide gives it its red or pink color
If they contain manganese and coal, like Naqdeh ore in West Azerbaijan, their color is blue, gray, or black.
Some marbles have veins, some are striped, and some are spotted or wavy.
A metamorphic deposit is formed by metamorphisms that are adjacent to one another.
