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Home Stone LibraryMarble Black Marble Portugal Black Marble Black Star

Black Star

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  • Black Star
  • Black Star Tile
  • Black Star Tile
About
Material Type: Marble
Origin:PortugalPortugal (Estremoz, Evora)
Priamry Color(s): Black
Recommended Usage:Exterior - Interior wall and floor applications, countertops, mosaic, fountains, pool and wall capping
Finishing Surface:Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Tumbled
Testing
Water Absorption:0.10 %
Density:2703 Kg/m3
Flexural Strength:256 kg/cm2
Compressive Strength:863 - 977 kg/cm2
Description

Black Star AGF Marble is dark grey marble - almost black-, with lighter grayish zones, medium granularity.
PHYSICAL-MECHANICAL CHARACTERISTICS
- Compressive strength - 863 kg/cm2 
- Compressive strength after freeze/thaw cycles - 977 kg/cm2 
- Flexural strength - 256 kg/cm2
- Apparent density - 2 703 fg/m3 
- Water absorption at atmospheric pressure - 0.10 % 
- Open porosity - 0.28 % 
- Coefficient of linear thermal expansion - 14.8 x 10-6 / oC 
- Abrasion resistance - 2.0 mm 
- Shock resistance: minimum height of fall - 55 cm
CHEMICAL ANALYSIS
SiO2-------------------------------------------------------------- 0.36 %
Al2O3------------------------------------------------------------ 0.69 %
Fe2O3 (total)--------------------------------------------------- 0.11 %
MnO--------------------------------------------------------------  vest.
CaO-------------------------------------------------------------- 53.89 %
MgO--------------------------------------------------------------  0.99 %
Na2O------------------------------------------------------------- 0.04 %
K2O-------------------------------------------------------------- 0.06 %
TiO2-------------------------------------------------------------  0.00 %
L.O.I.------------------------------------------------------------- 43.47 %

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FAQ Ask a Question
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Can Portugal's Black Star Marble be used outdoors?

Yes, Portugals Black Star Marble can be used outdoors. It is a durable and weather-resistant stone, making it suitable for various outdoor applications such as paving, cladding, pool coping, and outdoor furniture. Its dark color and unique veining patterns make it an excellent choice for adding a touch of elegance and sophistication to outdoor spaces. However, it is always recommended to consult with a professional stone supplier or installer to ensure proper installation and maintenance, taking into account the specific environmental conditions and requirements of the project.
Yes, Portugals Black Star Marble can be used outdoors. It is a durable and weather-resistant stone, making it suitable for various outdoor applications such as paving, cladding, pool coping, and outdoor furniture. Its dark color and unique veining patterns make it an excellent choice for adding a touch of elegance and sophistication to outdoor spaces. However, it is always recommended to consult with a professional stone supplier or installer to ensure proper installation and maintenance, taking into account the specific environmental conditions and requirements of the project.
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What is the average density of Portugal's Black Star Marble?

The average density of Portugals Black Star Marble is about 2.73 grams per cubic centimeter (g/cm3).
The average density of Portugals Black Star Marble is about 2.73 grams per cubic centimeter (g/cm3).
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Can Portugal's Black Star Marble be used in a dining room?

Yes, Portugals Black Star Marble can be used in a dining room. It is a type of marble that offers elegance and sophistication, making it a suitable choice for various interior applications, including dining rooms. The dark and distinctive veining in the marble can add a touch of drama and visual interest to the space. Additionally, marble is known for its durability and ability to withstand heavy use, making it suitable for dining room tables, countertops, or even flooring.
Yes, Portugals Black Star Marble can be used in a dining room. It is a type of marble that offers elegance and sophistication, making it a suitable choice for various interior applications, including dining rooms. The dark and distinctive veining in the marble can add a touch of drama and visual interest to the space. Additionally, marble is known for its durability and ability to withstand heavy use, making it suitable for dining room tables, countertops, or even flooring.
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Are there color variations of Portugal's Black Star Marble?

Yes, there are color variations of Portugals Black Star Marble. While the base color is black, there can be variations in terms of veining patterns and the presence of other minerals or elements in the stone. Some variations may exhibit white or grey veining, while others may have small specks or deposits of other colors such as gold or brown. These natural variations make each piece of Portugals Black Star Marble unique.
Yes, there are color variations of Portugals Black Star Marble. While the base color is black, there can be variations in terms of veining patterns and the presence of other minerals or elements in the stone. Some variations may exhibit white or grey veining, while others may have small specks or deposits of other colors such as gold or brown. These natural variations make each piece of Portugals Black Star Marble unique.
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What grade is Portugal's Black Star Marble?

Portugals Black Star Marble is graded as a commercial grade marble.
Portugals Black Star Marble is graded as a commercial grade marble.
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Is Portugal's Black Star Marble an expensive stone?

I do not have access to real-time pricing information. However, Black Star marble is generally considered a high-end and luxury material, and its price can vary depending on factors such as quality, availability, and location of the supplier. It is recommended to obtain quotes from multiple suppliers and compare them to determine the best cost-value option for your specific project.
I do not have access to real-time pricing information. However, Black Star marble is generally considered a high-end and luxury material, and its price can vary depending on factors such as quality, availability, and location of the supplier. It is recommended to obtain quotes from multiple suppliers and compare them to determine the best cost-value option for your specific project.
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Can Portugal's Black Star Marble be used in landscaping?

Yes, Portugals Black Star Marble can be used in landscaping. This type of marble has a striking black color with white veins or patterns, which can create a bold and elegant look in outdoor spaces. It can be used for various landscaping projects such as pathways, patios, garden borders, or as decorative elements in outdoor structures like fountains or seating areas. Portugals Black Star Marble is known for its durability and resistance to weathering, making it suitable for use in outdoor environments.
Yes, Portugals Black Star Marble can be used in landscaping. This type of marble has a striking black color with white veins or patterns, which can create a bold and elegant look in outdoor spaces. It can be used for various landscaping projects such as pathways, patios, garden borders, or as decorative elements in outdoor structures like fountains or seating areas. Portugals Black Star Marble is known for its durability and resistance to weathering, making it suitable for use in outdoor environments.
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What is the coefficient of friction of Chiseled Portugal's Black Star Marble tiles?

It is not possible to determine the coefficient of friction of Chiseled Portugals Black Star Marble tiles without conducting specific friction tests on the specific tile sample. The coefficient of friction can vary depending on factors such as surface finish, texture, and contaminants. It is recommended to contact the tile manufacturer or supplier for information regarding the coefficient of friction of their specific product.
It is not possible to determine the coefficient of friction of Chiseled Portugals Black Star Marble tiles without conducting specific friction tests on the specific tile sample. The coefficient of friction can vary depending on factors such as surface finish, texture, and contaminants. It is recommended to contact the tile manufacturer or supplier for information regarding the coefficient of friction of their specific product.
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Can Portugal's Black Star Marble be used exterior applications in very rainy climates?

Yes, Portugals Black Star Marble can be used for exterior applications in very rainy climates. This marble is known for its durability and water resistance, making it suitable for outdoor use even in areas with heavy rainfall. However, it is always recommended to consult with a professional stone supplier or installer to ensure the proper sealing and maintenance of the marble to keep it in good condition over time.
Yes, Portugals Black Star Marble can be used for exterior applications in very rainy climates. This marble is known for its durability and water resistance, making it suitable for outdoor use even in areas with heavy rainfall. However, it is always recommended to consult with a professional stone supplier or installer to ensure the proper sealing and maintenance of the marble to keep it in good condition over time.
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How thick is Portugal's Black Star Marble slabs?

Portugals Black Star Marble slabs are typically available in various thicknesses, including 2 cm (0.79 inches) and 3 cm (1.18 inches). However, the thickness may vary depending on the specific supplier or manufacturer.
Portugals Black Star Marble slabs are typically available in various thicknesses, including 2 cm (0.79 inches) and 3 cm (1.18 inches). However, the thickness may vary depending on the specific supplier or manufacturer.
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