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Royan Black Granite

Royan Black Granite

Granite

China

About

Item Details

Material Type:
Granite
Origin:
China (Shandong Province)
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:
Luyang Black Granite, in China stone market:鲁阳黑(Lǔ yáng hēi)
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:
≤ 0.25 % by weight
Density:
2650 – 2750 Kg/m³
Flexural Strength:
15 – 18 MPa
Compressive Strength:
180 – 210 MPa

Description

Royan Black Granite is a fine-grain grey-black natural stone with a consistent and elegant dark background. Its subtle mix of fine dark grey and black crystals gives it a uniform appearance, making it ideal for modern architectural and design applications. The stone’s durability and polished finish make it suitable for both interior and exterior uses.

Texture & Pattern

  • Grain: Fine to very fine
  • Texture: Smooth and dense
  • Pattern: Consistent speckled pattern of dark grey and black
  • Reflectivity: Moderate to high when polished

Physical & Mechanical Properties

  • Density .... 2.65 – 2.75 g/cm³
  • Water Absorption .... ≤ 0.25%
  • Compressive Strength .... 180 – 210 MPa
  • Flexural Strength .... 15 – 18 MPa
  • Abrasion Resistance .... High
  • Mohs Hardness .... 6 – 7
  • Porosity .... < 0.2%

Chemical Composition (% by Weight)

SiO2 .... 68 – 75%

Al2O3 .... 12 – 14%

K2O + Na2O .... 3 – 6%

Fe2O3 .... 1.5 – 2.5%

CaO, MgO .... < 1% each

TiO2 & Others .... < 0.5%

Mineral Composition (% by Weight)

  • Quartz .... 35 – 45%
  • Feldspar (Plagioclase, Orthoclase) .... 40 – 50%
  • Biotite/Mica .... 5 – 10%
  • Accessory Minerals .... < 5%

Standard Cutting Sizes

Slabs:

  • 240–320 cm x 120–200 cm (≈ 94"–126" x 47"–79")
  • Thickness: 2 cm (3/4"), 3 cm (1-1/4")

Tiles:

  • 30×30 cm (12"x12")
  • 60×30 cm (24"x12")
  • 60×60 cm (24"x24")
  • 80×80 cm (32"x32")
  • Custom sizes available
  • Thickness: 1.5 cm, 2 cm, 3 cm

Surface Finish Options

  • Polished .... High gloss, interior floors, walls, countertops
  • Honed .... Smooth matte for commercial/residential use
  • Leathered .... Soft-textured matte, slip-resistant
  • Flamed .... Rough surface, ideal for outdoor or anti-slip needs
  • Tumbled .... Aged, rustic appearance for decorative use
  • Sawn Cut .... Raw surface for processing or cladding

Applications & Usage

  • Interior flooring and wall cladding
  • Kitchen countertops and vanity tops
  • Exterior façade and wall panels
  • Stair treads and risers
  • Paving and landscaping
  • Monuments and gravestones

Maintenance Guidelines

Cleaning: Use neutral pH stone cleaner or mild soap. Avoid acidic products.

Sealing: Optional, depending on usage. For countertops and floors, seal once every 1–2 years.

Scratch & Stain Resistance: Excellent, suitable for high-traffic zones.

FAQ

How can I clean the grout of Royan Black Granite wall tiles?

To clean the grout of Royan Black Granite wall tiles, you can follow these steps: 1. Start by mixing a solution of warm water and mild detergent or a grout cleaner specifically designed for granite tiles. 2. Using a scrub brush or toothbrush, apply the cleaning solution to the grout lines and scrub gently in a circular motion. 3. Allow the solution to sit on the grout for a few minutes to help loosen any dirt or grime. 4. Rinse the grout lines with clean water to remove the cleaning solution. 5. For tougher stains or mildew, you can also use a mixture of equal parts water and white vinegar. Apply this solution to the grout lines and let it sit for about 15-20 minutes before scrubbing and rinsing with clean water. 6. Once the grout is clean, dry it thoroughly with a clean towel or cloth to prevent moisture buildup and mold growth. 7. To prevent future stains and make cleaning easier, consider sealing the grout with a penetrating sealer designed for granite tiles. By following these steps, you should be able to clean the grout of Royan Black Granite wall tiles effectively and maintain their appearance for years to come.

How can I repair the scratched surface of the Royan Black Granite steps?

To repair the scratched surface of Royan Black Granite steps, you can follow these steps: 1. Clean the area: Start by cleaning the scratched area with mild soap and warm water. Use a soft cloth to wipe away any dirt, dust, or debris. 2. Assess the damage: Evaluate the depth of the scratches. If they are superficial, you may be able to buff them out yourself. If the scratches are deep, you may need to hire a professional stone restoration expert. 3. Buffing: For light scratches, you can use a granite polishing compound and a clean, soft cloth to buff the surface. Apply the compound to the scratched area and use a circular motion to buff it until the scratches are no longer visible. 4. Sealing: Once the scratches are repaired, it is a good idea to seal the granite to protect it from future damage. Use a granite sealer according to the manufacturers instructions. 5. Maintenance: To prevent future scratches, be sure to regularly clean and maintain the granite steps. Avoid using harsh chemicals or abrasive cleaning tools that could scratch the surface. If the scratches are too deep or extensive to repair on your own, it is best to contact a professional stone restoration expert for assistance. They will have the knowledge and tools to properly repair the granite steps and restore them to their original beauty.

Is Royan Black Granite with a polished surface good for kitchen flooring?

Royan Black Granite with a polished surface can be a good option for kitchen flooring. Granite is a durable and scratch-resistant material that can withstand the high traffic and heavy use typical of a kitchen. The polished surface adds an elegant and luxurious look to the space, making it a popular choice for many homeowners. However, it is important to keep in mind that polished surfaces can be slippery, so it is recommended to choose a honed finish or add a rug or mat in areas where slipperiness may be a concern. Additionally, regular maintenance such as resealing is necessary to keep the granite looking its best.

Is Royan Black Granite a suitable choice for gravestones?

Yes, Royan Black Granite is a suitable choice for gravestones. This type of granite is known for its durability, resistance to weathering, and elegant appearance, making it a popular choice for memorial markers. Additionally, the black color of Royan Black Granite can create a timeless and dignified look for a gravestone.

Can polished Royan Black Granite be used for pool coping?

Yes, polished Royan Black Granite can be used for pool coping. This type of granite is durable and resistant to water damage, making it an excellent choice for pool coping. The polished finish will also provide a smooth and elegant look to the pool edge. Make sure to properly seal the granite to protect it from pool chemicals and maintain its appearance over time.

Can 2cm thick Royan Black Granite be used as a kitchen countertop?

Yes, 2cm thick Royan Black Granite can be used as a kitchen countertop. However, it is important to note that 2cm thickness may not be as durable or long-lasting as a thicker countertop option, such as 3cm or 4cm. Thinner countertops may also be more prone to cracking or breaking under heavy use. It is recommended to consult with a professional countertop installer to determine if a 2cm thick Royan Black Granite will be suitable for your specific kitchen needs.

How can I maintain Royan Black Granite flooring?

1. Regular Cleaning: Sweep or vacuum the floor regularly to remove dirt and debris that can scratch the surface. Mop the floor with a mild detergent and warm water to keep it clean and free of stains. 2. Sealing: Seal the granite flooring with a high-quality sealant to protect it from stains and water damage. Reapply the sealant as needed, typically once a year. 3. Avoid Harsh Chemicals: Avoid using harsh chemicals or abrasive cleaners on Royan Black Granite flooring as they can damage the surface. Stick to gentle, pH-neutral cleaners to maintain its shine and durability. 4. Use Mats and Rugs: Place mats or rugs at entryways and high-traffic areas to prevent dirt and grit from wearing down the granite floor. This will also help protect the surface from scratches and damage. 5. Wipe up Spills Immediately: Promptly clean up any spills on the granite floor to prevent stains and damage. Use a soft cloth or sponge and mild detergent to gently wipe away the spill. 6. Avoid Heavy Impact: Avoid dropping heavy objects or dragging furniture across the granite floor to prevent chips, cracks, or scratches. 7. Professional Cleaning: Consider hiring a professional cleaning service to deep clean and polish your Royan Black Granite flooring periodically to maintain its beauty and longevity.

Is Royan Black Granite a suitable choice for facades in cold winter climates?

Royan Black Granite is a durable and resilient material that can withstand cold winter climates. Its dark color and natural patterns make it a stylish choice for facades, and its resistance to harsh weather conditions makes it a suitable choice for use in cold climates. However, it is always recommended to consult with a professional before making a final decision to ensure that the specific conditions of the climate and location are taken into consideration.

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