Post Your Needs

Black Crystal Granite

Granite

Angola

About

Item Details

Material Type:
Granite
Origin:
Angola (Province of Huila, south of Angola)
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:
Crystal Black Granite, Angola Black Granite, Labrador Angola Granite, Negro Angola Granite, Labrador Supreme Granite, Black Mingue Granite, Black Jade Granite, Huila Black Granite, in China stone market: 黑水晶(Hēi shuǐjīng), Black Crystal 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:
0.02 mass %
Density:
2839 kg/m3
Flexural Strength:
25.2 MPa
Compressive Strength:
256-258 MPa

Description

Black Crystal Granite, quarried in the Province of Huila in the south of Angola, is a remarkable natural stone with a unique set of characteristics.

Visual Appearance

Base Color: The medium - coarse grained texture gives it a solid and substantial feel. The predominant charcoal - black color provides a deep, rich backdrop that is both elegant and bold. This dark base color serves as a canvas for the other elements of the stone's pattern.

Fragments and Patterns: The presence of golden - brown and silver - gray fragments within the granite creates a captivating pattern. The golden - brown flecks add a touch of warmth and a glint of luxury, reminiscent of hidden treasures within the black expanse. The silver - gray fragments, on the other hand, introduce a cool and metallic contrast, enhancing the overall visual interest. The combination of these colors and the way they are distributed throughout the stone gives the impression of a starry night sky or a complex geological tapestry.

Texture and Durability

As a granite, Black Crystal Granite has a relatively coarse - grained texture that can be felt to the touch. This texture not only adds to its aesthetic appeal but also indicates its strength. The coarse grains contribute to the stone's durability, making it resistant to wear and tear. It can withstand heavy foot traffic, making it an excellent choice for flooring applications. It is also highly resistant to scratches, ensuring that its beautiful surface remains intact over time.

The stone's durability also extends to its resistance to heat and chemicals. This makes it a practical option for use in kitchens, where it can handle hot pans and spills without being damaged.

Versatility in Design

Interior Design: In interior spaces, Black Crystal Granite can be used to create a variety of moods. In a modern - style kitchen, its charcoal - black base with the glimmering fragments can make a statement as a countertop material. Paired with stainless - steel appliances and light - colored cabinetry, it creates a sleek and high - end look. In a bathroom, it can be used for vanity tops or wall cladding, adding a touch of luxury and a spa - like atmosphere.

Exterior Design: For exterior applications, it is suitable for use in landscaping and building facades. In a garden setting, it can be used to create pathways or as a decorative element around a water feature. On a building's exterior, it can add a sense of grandeur and durability, withstanding the elements while maintaining its visual appeal.

Aesthetic Impact

The unique combination of colors and the medium - coarse grain of Black Crystal Granite makes it a focal point in any design. Its presence can transform a space from ordinary to extraordinary. The golden - brown and silver - gray fragments catch the light in different ways, depending on the angle and the lighting conditions of the space. This creates a dynamic visual experience, adding depth and dimension to the area where it is installed.

Mineralogical Composition of Black Crystal Granite % wt:

  • Quartz: 30%
  • Biotite: 25%
  • Plagioclase Feldspar: 20%
  • Potassium Feldspar: 20%
  • Magnetite: 3%
  • Pyrite: 1%
  • Other minerals: 1%

Chemical Analysis of Black Crystal Granite:

  • SiO2 (Silicon Dioxide): 65-75%
  • Al2O3 (Aluminum Oxide): 10-15%
  • K2O (Potassium Oxide): 4-6%
  • Na2O (Sodium Oxide): 2-4%
  • Fe2O3 (Iron Oxide): 1-3%
  • CaO (Calcium Oxide): 1-3%
  • MgO (Magnesium Oxide): 0.5-1%
  • TiO2 (Titanium Dioxide): 0.5-1%
  • MnO (Manganese Oxide): 0.1-0.5%

FAQ

Is there radiation in Black Crystal Granite kitchen countertops?

Black Crystal Granite has no significant levels of radiation that pose a health risk to people. It is a natural stone that may contain small amounts of naturally occurring radioactive elements like uranium and thorium, but these levels are very low and typically considered safe for use in countertops. However, it is always a good idea to ensure the granite is properly sealed to minimize any potential risks.

How can I clean the grout of antique finish Black Crystal Granite tiles?

To clean the grout of antique finish Black Crystal Granite tiles, you can follow these steps: 1. Start by removing any debris or loose dirt from the grout lines with a vacuum cleaner or dry brush. 2. Mix a solution of warm water and mild dish soap in a bucket. 3. Use a grout brush or small scrub brush to apply the soapy water to the grout lines. Scrub the grout thoroughly to remove any stains or buildup. 4. For tough stains or stubborn grime, you can make a paste with baking soda and water. Apply the paste to the grout lines and scrub gently with a brush. 5. Rinse the grout lines with clean water to remove any soap residue. 6. Dry the grout lines thoroughly with a clean cloth or towel. 7. If there are still stubborn stains remaining, you can try using a commercial grout cleaner or a mixture of vinegar and water. 8. After cleaning, it is recommended to seal the grout lines to prevent future stains and make them easier to clean in the future. By following these steps, you can effectively clean the grout of antique finish Black Crystal Granite tiles and restore their appearance.

Can sawn cut Black Crystal Granite tiles be used for internal flooring?

Yes, sawn cut Black Crystal Granite tiles can be used for internal flooring. Granite is a durable and versatile material that is suitable for high-traffic areas such as flooring. It is also resistant to scratches, stains, and heat, making it an ideal choice for flooring in residential and commercial spaces. The sawn cut edges of the tiles will create a clean and uniform look when installed, providing a modern and sophisticated appearance to the interior. Additionally, Black Crystal Granite has a sleek and polished finish that will enhance the aesthetic appeal of any room.

Which Black Crystal Granite surface finish is best for stair steps?

The best surface finish for Black Crystal Granite stair steps would be a polished or honed finish. A polished finish will give the stairs a shiny, smooth surface that is easy to clean and maintain, while a honed finish will have a matte appearance that is also durable and slip-resistant. Both finishes will enhance the natural beauty of the Black Crystal Granite and provide a stylish and functional staircase.

Is black Black Crystal Granite good for stairs?

Black Crystal Granite is a durable and elegant material that can be a good choice for stairs. Its natural beauty and glossy finish make it a great option for interior and exterior staircases. Additionally, black granite is easy to clean and maintain, making it a practical choice for high-traffic areas like stairs. Just be sure to properly seal the granite to protect it from scratches and stains.

What is the best thing to clean a Black Crystal Granite with?

To clean Black Crystal Granite, it is best to use a mild dish soap or granite cleaner diluted in warm water. Avoid using abrasive cleaners, vinegar, lemon juice, or any acidic substances as they can damage the granite surface. Gently wipe the granite with a soft cloth or sponge and dry immediately with a clean, dry cloth to prevent water spots.

Can I use Dawn to clean a Black Crystal Granite headstone?

Yes, you can use Dawn to clean a Black Crystal Granite headstone. Dawn is a gentle dish soap that is safe to use on most surfaces, including granite. To clean the headstone, mix a small amount of Dawn with water and use a soft brush or cloth to gently scrub the surface. Rinse thoroughly with clean water after cleaning. Be sure to test a small, inconspicuous area of the headstone first to ensure that the soap does not cause any damage or discoloration.

Can I pressure wash Black Crystal Granite headstones?

It is best to avoid using a pressure washer on Black Crystal Granite headstones. The high pressure of the water can potentially damage the surface or cause pitting. Instead, it is recommended to use a soft bristle brush or a mild soap and water solution to gently clean the headstone. If there are stubborn stains or buildup, consult with a professional monument cleaner for safe and effective cleaning methods.

How can I protect Black Crystal Granite headstones?

To protect Black Crystal Granite headstones, consider the following tips: 1. Regular cleaning: Clean the granite headstone regularly with a soft cloth and mild soap to remove dirt, debris, and other stains. 2. Avoid harsh cleaners: Do not use harsh chemicals or cleaners, as they can damage the granite surface. Stick to mild soap and water for cleaning. 3. Avoid abrasive materials: Do not use abrasive materials or brushes to clean the granite headstone, as they can scratch the surface. 4. Apply a sealant: Consider applying a high-quality sealant specifically designed for granite to protect the surface from stains, discoloration, and other damage. 5. Avoid direct sunlight: Try to place the headstone away from direct sunlight to prevent fading and weathering of the granite. 6. Regular maintenance: Keep an eye on the headstone and address any issues promptly to prevent further damage. By following these tips, you can protect and maintain the beauty of Black Crystal Granite headstones for years to come.

Products & Prices

View More

Hot Granite

New Granite

Post Your Request

The request includes:
  1. surface finished, size
  2. quantity required