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Dragon Black Granite

Dragon Black Granite

Black - Granite

China

About

Item Details

Material Type:
Granite
Origin:
China (Hebei province)
Primary Color(s):
Black
Recommended Usage:
Kitchen and bathroom countertops, monuments, building stone, ornamental stone, stairs, interior, exterior wall and floor applications, mosaic, waterjet pattern, wall panels, table tops, window sills, balustrades, columns, wall and pool copings, pool pavers, sculptures, fireplaces, pavers, cobbles, curbstone
Additional Names:
Dragon Black, Black Assoluto Hebei Granite, China Black Granite, Hebei Black Granite, Long Black Granite, Long Hei Granite, Hebei Absolute Black Granite, China Absolute Black Granite, in China stone market:龙江黑(Lóng Jiāng Hēi), Long Hei, Dragon Black Granite
Finished Surface:
Polished,Flamed,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling

Testing

Water Absorption:
0.1 - 0.3%
Density:
2710 - 2870 kg/m³
Flexural Strength:
10 - 15 MPa
Compressive Strength:
220 - 230 MPa
Stone texture:
deep, rich black color with a subtle blue undertone and visible specular highlights

Description

Dragon Black Granite is a sought-after natural stone known for its deep, rich black color, which subtly reflects a blue undertone enhanced by the presence of visible specular highlights. Quarried in the Hebei province of China, this granite is highly regarded for its aesthetic appeal and excellent physical and mechanical properties, making it a popular choice for numerous architectural and design applications.

Physical and Mechanical Properties

  • Water Absorption:Typically low, around 0.1% - 0.3%, indicating the stone's resistance to water penetration.
  • Density:Approximately 2,710 to 2,870 kg/m³, which is characteristic of dense and robust granite types.
  • Flexural Strength:Generally ranges between 10 to 15 MPa, pointing to good strength and flexibility under tension.
  • Compressive Strength:Typically between 220 to 230 MPa, showcasing its ability to withstand heavy weight and pressure.
  • Hardness:Ranges from 6 to 7 on the Mohs scale, making it a hard and durable material suitable for high-traffic areas.
  • Porosity:Very low, generally under 1%, contributing to its resistance to staining and moisture.
  • Slip Resistance:Dependent on the surface finish; a polished finish may offer lower slip resistance compared to a honed or flamed finish, which usually improves slip resistance.

Chemical and Mineral Composition (Approximate % by weight)

  • Quartz: 25% - 35%
  • Feldspar: 50% - 65%
  • Biotite and other micas: 5% - 10%
  • Minor minerals (e.g., hornblende, pyroxene): 5% - 7%

Usage and Applications

  • Interior Flooring and Wall Cladding: Its elegant appearance makes it ideal for high-end residential and commercial spaces.
  • Countertops and Vanities: Due to its hardness and resistance to staining, it's popular for kitchen and bathroom surfaces.
  • Exterior Cladding and Paving: Suitable for outdoor use given its durability against weather.
  • Architectural Elements: Columns, balustrades, and facades.
  • Memorials and Monuments: Commonly used due to its solemn elegance.

Maintenance

  • Routine Cleaning: Use pH-neutral cleaners and avoid acidic or abrasive products.
  • Sealing: Applying a quality stone sealant can enhance stain resistance, recommended every 6-12 months depending on use.
  • Polishing: Periodic polishing can maintain its luster, although surfaces like honed don't require this.

Cutting Sizes

  • Standard Slab Sizes: Range from 240cm x 120cm to 300cm x 180cm
  • Thickness: Commonly available in 2cm and 3cm slabs
  • Custom Sizes: Available on request, depending on supplier provisions.

Surface Finish Options

  • Polished: A shiny finish that enhances the deep black and highlights.
  • Honed: A matte finish that offers a softer appearance.
  • Flamed: Rough, textured finish offering better slip resistance, ideal for outdoor use.
  • Brushed/Leathered: Produces a satin-like appearance with slight texture, offering a more rustic aesthetic.

Dragon Black Granite from Hebei province is a versatile material that can enhance both aesthetic appeal and functional performance in various architectural and design contexts. Its inherent durability and luxurious appearance make it a favored choice among designers and architects worldwide.

FAQ

Can China's Long Hei Granite be used exterior applications in very dusty climates?

Chinas Long Hei Granite can be used for exterior applications in dusty climates, but it is important to consider a few factors. Long Hei Granite is known for its durability and hardness, making it suitable for outdoor use. It has a high compressive strength and low water absorption, which helps it withstand various weather conditions, including dust. However, there are a few considerations to keep in mind: 1. Sealing: To enhance the granites resistance to dust and prevent staining, it is recommended to apply a good quality sealer. Sealing the granite helps create a protective barrier that reduces the impact of dust particles and prevents them from penetrating the stones surface. 2. Regular cleaning: In dusty climates, regular cleaning and maintenance are important to keep the granite looking its best. Dust and dirt can accumulate on the surface over time, making it appear dull. Regular sweeping and washing with mild detergent and water can help maintain its aesthetic appeal. 3. Finishes: The choice of finish can also impact how dust accumulates on the granites surface. A polished finish may show more dust due to its reflective properties, while a honed or textured finish may be more forgiving in terms of dust visibility. Overall, with proper sealing and regular maintenance, Chinas Long Hei Granite can be used effectively for exterior applications in dusty climates. However, it is advisable to consult with an experienced supplier or professional stone installer to ensure the correct selection and installation method for your specific project requirements.

Can China's Long Hei Granite be used in a office?

Yes, Chinas Long Hei Granite can be used in an office. Granite is a durable and versatile material that is commonly used in many commercial and residential settings, including offices. Long Hei Granite, specifically, is known for its elegant and sophisticated appearance with a black and white color palette. It can be used for office countertops, flooring, accent walls, or even for decorative elements like desktops or conference room tables.

What is the physical properties of Long Hei?

Long Hei is a neighborhood located in the New Territories of Hong Kong. It is primarily known for its rural and natural environment. Some of the physical properties of Long Hei include: 1. Mountainous Terrain: Long Hei is surrounded by hills and mountains, giving it a scenic and picturesque landscape. 2. Dense Vegetation: The area is characterized by lush greenery and dense forests, with a variety of plant species thriving in the region. 3. Wildlife Diversity: Due to its natural setting, Long Hei is home to diverse wildlife species, including birds, butterflies, insects, and various small mammals. 4. Streams and Waterfalls: Long Hei has several streams and waterfalls, adding to its natural beauty and providing recreational opportunities for visitors. 5. Farming and Agriculture: The neighborhood has a history of traditional farming practices, with some local residents engaging in agriculture for subsistence or commercial purposes. 6. Hiking Trails: The presence of mountains and forests has led to the creation of hiking trails in the area, attracting outdoor enthusiasts who enjoy exploring the natural surroundings. 7. Peaceful Environment: Long Hei offers a tranquil and serene environment, away from the hustle and bustle of urban areas, making it an attractive destination for those seeking a retreat in nature.

What is the darkest pure black granite?

The darkest pure black granite is typically known as Absolute Black granite. It is a high-quality black granite that has no other visible minerals or colors. It is highly reflective and almost pitch black in appearance, making it one of the darkest options available in the granite category.

Can China's Long Hei Granite be used outdoors?

Yes, Chinas Long Hei Granite can be used outdoors. Long Hei Granite is known for its durability and resistance to weathering, making it suitable for outdoor applications such as paving, landscaping, cladding, and even in high-traffic areas. Its high compressive strength allows it to withstand heavy loads, and its natural beauty adds an aesthetic appeal to outdoor spaces. Proper installation and maintenance are necessary to ensure longevity and prevent any potential damage or staining.

What is the coefficient of friction of Filled China's Long Hei Granite tiles?

The coefficient of friction for Filled Chinas Long Hei Granite tiles would depend on various factors such as the specific surface finish, smoothness, and any treatment applied to the tiles. Generally, granite surfaces have a coefficient of friction ranging from 0.6 to 0.8, with polished surfaces having a lower coefficient of friction compared to rougher surfaces. However, without specific information about the particular product and its surface characteristics, it is challenging to provide an accurate coefficient of friction for Filled Chinas Long Hei Granite tiles. It is recommended to consult the manufacturer or supplier of the tiles for precise information regarding the coefficient of friction for that specific product.

Can China's Long Hei Granite be used in landscaping?

Yes, Chinas Long Hei Granite can be used in landscaping. Long Hei Granite is a durable and rugged material that is often used in various landscaping applications. It can be used for outdoor paving, walkways, patios, driveways, retaining walls, garden borders, and decorative rock features. Its natural beauty, strength, and resistance to weather make it a popular choice for landscaping projects.

What grade is China's Long Hei Granite?

I cannot provide an accurate answer without additional context. Long Hei Granite is a type of granite from China, and it is not associated with a specific grade unless specified for a particular purpose or application. Granite can be categorized by color, pattern, and region of origin, but not by a grading system. If you can provide more information about the context of the question, I can assist you better.

Are there color variations of China's Long Hei Granite?

I do not have access to the latest s on stone materials. However, according to past data, Chinas Long Hei Granite is generally characterized as black and white with small variations. The black and white pattern is said to resemble the stripes of a zebra. It is a highly popular material and is commonly used for countertops, flooring, and wall cladding. However, it is always best to consult a specialized stone supplier for the latest color variations and available options.

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