Porcelain crystal stone:

A: The coarseness of the proposed granulation has led to the so-called Porcelain crystal. Therefore, it is known as Porcelain stone.

The explanation concerns that:

Marble rocks are crystallized over a long period of time due to the thermal pressure caused by the injection of hot magma, and its granulation is crystalline. Of course, these crystal granulation are also visible to the naked eye.

Note: considering the available color and granulation size in porcelain stone, this stone is divided into three categories called porcelain crystal, gray porcelain and white porcelain.

Porcelain crystal stone:

The coarseness of the proposed granulation has led to the so-called Porcelain crystal.

Gray porcelain stone:

Due to its light to dark color, it is named with gray, black and yellow streaks.

White porcelain stone:

Porcelain is pure with elements such as carbon, chloride, hematite and limonite.

B: Usage of crystal stone (Porcelain):

This type of stone can be used in building facades, paving, stairs, sidewalks and decorative stone artifacts.

C: The constituent elements of crystal or porcelain stone are:

The main material of this stone is calcium carbonate.

Oxides of iron, potassium, sodium, magnesium and manganese are other constituent elements.

D: Types of crystal (Porcelain) stones are:

Azna and Aligudarz porcelain of Lorestan, Qorveh Sanandaj, Sirjan porcelain of Kerman, Leibid of Isfahan and Neyriz Fars porcelain, which are famous for their rigidity and beauty of various types of porcelain stones.