Pietra Grey Marble

What is Pietra Grey Marble

Pietra Grey Marble also known as Armani Grey is the most admired Iranian marble stone in both local and global markets. It is a natural stone that forms when limestone is subjected to extreme heat and pressure. Hence, this natural stone comes in stunning patterns and various colors. We can categorize it based on color, size, and finish. Some types of marble stones that we offer are Arabscato, Armani Brown, Carrara, Golden Black, Limestone, Marshal, Persian Silk, Pietra Grey, Rosalia, and Spider. In this article, we are going to discuss every detail regarding this widespread natural stone. 

Characteristics and Features

Persian Pietra Grey is one of the most well-known and best-selling natural stones in the world due to its properties and beauty. Here are some of its main characteristics, properties, and features:

Color and Veining:

It has a dark grey color with white veins running through it. The gray hue of Pietra Grey marble ranges from medium to dark tones, based on its quarry, with subtle variations that add visual interest and depth to the stone. The veining patterns are a true standout feature. These veins can vary in intensity, ranging from fine, delicate lines to bolder, more pronounced patterns. The veins typically appear in contrasting colors, such as white or light gray, against the dark gray background of the stone. This striking contrast creates a captivating visual effect.

Natural Variation:

Like all natural stones, Pietra Grey marble exhibits natural variation in its veining patterns and color distribution. Each slab of Pietra Grey marble is unique, with its own individual characteristics and charm. This natural variation ensures that no two installations will be exactly alike, making Pietra Grey marble a highly sought-after choice for those seeking a one-of-a-kind aesthetic. It is also durable and resistant to scratches, stains, and heat. The texture of Armani Grey is smooth and polished, which gives it a lavish appearance.

Water absorption:

The water absorption of Pietra Gray can vary depending on the specific type of stone and its finish. However, in general, this grey marble has a low to medium water absorption rate. This means that it is not highly porous and can resist water penetration to some extent. Nonetheless, we recommend you seal Pietra Grey regularly to prevent water damage and staining.

Compressive strength:

In general, it has a high compressive strength, which makes it a durable and long-lasting natural stone. The exact value of the compressive strength can range from 100 MPa to 250 MPa, depending quality of the stone. This high compressive strength makes Pietra Grey suitable for various applications, including flooring, cladding, and countertops, where it can withstand heavy loads and foot traffic.

Density:

Pietra Grey has a high density, which is a desirable characteristic of natural stone. The value of density ranges from around 2.7 to 3 grams per cubic centimeter (g/cm³), depending on the source and quality of the stone. This high density makes Armani Grey a sturdy material, which is ideal for applications that require durability and strength. Additionally, the high density of this material makes it resistant to water penetration and staining, further enhancing its durability and longevity.

Abrasion resistance:

This material has a moderate to high level of abrasion resistance. The exact level of resistance can vary depending on factors such as the specific quarry source and the finishing process. However, Pietra Grey is a durable and long-lasting material that can withstand normal wear and tear. It is important to take care of the stone and avoid exposing it to harsh chemicals or abrasive materials that could damage its surface over time. Regular cleaning and maintenance can help to preserve the natural beauty and integrity of Pietra Gray.

Shortly, the prominent features of this marble are low water absorption and high compressive strength. In addition, high density, as well as high abrasive resistance, are other characteristics of this stone. For further details, you can also download and see Pietra Gray technical data sheet HERE 

Size, Dimension, and Thickness

Pietra Grey is available in a variety of sizes, dimensions, and thicknesses, depending on the specific application and customers’ demand. The popular tile sizes are about 30×60, 40×60, 40×80, 40×100 and 40×140, with a thickness of 2cm. For slabs, they are typically available in thicknesses of 2 centimeters (3/4 inch) or 3 centimeters (1 1/4 inch). The regular dimensions of slabs are up to 190 cm by 270 cm.

Custom sizes and dimensions are also available, depending on the specific needs of the project. It is important to consult with a reputable supplier to determine the best size and thickness for your particular application.

Sorts and Grades of Pietra Grey Marble

Overall, factories categorize Pietra grey marble stone (Armani grey) into different sorts and grades, according to its quality and appearance. To give an instance, grade A is more valuable than grades B and C as a result of higher quality. Here are some of the most common grades and sorts of this Iranian grey marble:

Grade A

First grade has the highest quality, with a dark grey background, uniform color, and flawless appearance. It is free of any defects, such as cracks, holes, or discoloration. Hence, No burning mark is visible on its surface, as well as yellow veins.

Grade B

Second grade has a high quality, with a dark grey background and uniform color. No yellow streaks are visible on its surface. This grade may have some minor defects, such as a few burning marks on the stone’s surface. However, it is still considered to be of good quality and can be used for a variety of applications.

Grade C

Third grade has an average quality, with a light grey background and uniform color, obvious burning marks, and yellow veins on its surface. This grade is typically a good option for less demanding applications, such as landscaping or exterior cladding.

The above video demonstrates a grade A Pietra Gray marble slab. Check HERE for more videos.

It is important to note that the grading and sorting of Pietra Grey Marble can vary depending on the supplier. It is always recommended to inspect the material before purchase to ensure that it meets your specific needs and requirements.

Iran The origin of Pietra Grey Marble

Iran is 3rd biggest global marble producer in the world. It also ranks 1st in terms of stone variety, colors, quality, and processing. Thus, you can find one of the best marble in different parts of Iran with various natural stone quarries. Because Iranian marble is well-known worldwide. Consequently, manufacturer exporters export this product all over the world due to its beauty, high quality, and low porosity.

All things considered, Iran is the primary origin of Pietra Grey Marble. Specifically, Iranian Pietra Gray marble slab, tile, and block, with perfect finish are extracted from Lashotor quarries. These quarries are located in the south of Esfahan Province, in Iran. Companies export Pietra Grey Marble to many countries around the world due to its popularity and high demand in the construction and design industries. Here, at BorjStone Corp. we supply the best quality marble stone at a reasonable price in different sizes.

Quarries, Extraction, and Process

As mentioned above, Pietra gray quarries are located in central Iran, Isfahan Province, Lashotor area. The extraction process of grey marble involves drilling holes into the rock face and then using diamond wire saws to cut the marble blocks from the quarry. The blocks are then transported to factories where they are cut into slabs, tiles, and other shapes using saws and other cutting tools.

After transporting blocks to the factories, they undergo a series of processes to turn them into finished products that can be used for various applications. Here are the steps involved in the processing of Pietra grey marble in factories:

1. Cutting: First they cut the block into slabs of varying thickness using large saws. They cut the slabs into smaller sizes using smaller saws or waterjet machines.

2. Polishing: Factories polish cut pieces using abrasive pads to achieve a smooth and glossy finish.

3. Quality Control: QC manager inspects the polished pieces for any defects such as cracks, chips, or uneven surfaces. As a result, he will discard any defective pieces.

4. Sorting: The factory sorts the stones based on their quality into different grades from A to C.

5. Packaging: Factories pack the finished pieces into crates and prepare for shipping.

The final product can be customized to meet the specific needs of each project, including size, shape, and finish.

Pricing Policy of Pietra Grey Marble

Pricing for Pietra Gray can vary depending on several factors, including the supplier, location, quality, packing, and quantity of the marble as well as many other elements. Some suppliers may price Pietra Grey marble based on the square footage or square meters of the material. The price per square unit can vary based on factors such as thickness, finish, process quality, and any additional treatments or customization.

It’s important to note that prices can fluctuate over time due to market conditions, availability, currency fluctuations, and other factors. To get the most accurate and up-to-date pricing information, it is recommended to reach us in order to provide you with specific pricing details based on your requirements and location.

Uses of Armani Grey Marble

Pietra Grey Marble is a highly versatile stone that is appropriate for a wide range of applications in the construction and design industries. Based on its finish this stone is a good option for interior and exterior design. Some of the most common uses of this Iranian grey marble include:

1. Flooring: Armani Grey Marble is a popular choice for flooring and stairways due to its durability, unique veining patterns, and elegant appearance.

2. Wall Cladding: The stone is often used for wall cladding, backsplash, and facades in both interior and exterior applications, adding a touch of enlightenment and amenity to any space.

3. Countertops: Due to its durability, resistance to heat and scratches, and easy maintenance it is an ideal choice for countertops.

4. Decorative Accents: It is common to use this natural grey marble for decorative accents such as fireplace surrounds, columns, and other architectural details.

5. Furniture: This grey stone is also a good fit for furniture such as tables, benches, and other decorative pieces.

Overall, as a versatile and elegant stone, Pietra grey is a popular choice for designers and architects around the world for various applications.

How Durable Is Pietra Grey Marble?

Pietra Grey Marble is classified as a medium-hard marble, which means it is relatively resistant to scratching and impact compared to softer stones. However, it is still important to avoid dragging heavy objects across the surface to prevent potential damage. It has good resistance to staining, especially when properly sealed. However, it is still recommended to clean up spills promptly to prevent any potential staining, particularly from acidic substances like wine or citrus juices

Like most natural stones, Pietra Grey Marble has good heat resistance. It can withstand high temperatures without being damaged or discolored. However, it is always advisable to use trivets or hot pads under hot cookware to prevent any potential thermal shock.

Further Information

All in all, there are many reasons to buy this stone for your projects. To clarify, the beauty and specifications of this product make it a good match for many applications. In case you are interested in hearing some information about this product, you can listen to the podcast below:

In order to gain more information and details about Pietra Gray Marble stone, its different types, sizes and colors, texture and finish, quality, features, uses, and application, please click HERE to contact one of our sales consultants in Borj Stone Corporation.