Nebula Black Granite

About
Item Details
- Material Type:
- Granite
- Origin:
China - Primary Color(s):
- Black
- Recommended Usage:
- kitchen and bathroom countertop, 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:
- Star Black Granite, Star Cloud Black Granite, in China stone market:星云黑(Xīngyún hēi), Nebula Black Granite
- Finished Surface:
- Polished,Flamed,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Chiseled,Pickling
Testing
- Water Absorption:
- 0.3 - 0.5%
- Density:
- 2680 - 2730 kg/m³
- Flexural Strength:
- 13 - 15 MPa
- Compressive Strength:
- 160 - 180 MPa
- Stone texture:
- a dark black or charcoal stone with cloudy, nebulous, irregular patterns
Description
Nebula Black Granite is a striking dark stone, predominantly black or charcoal, characterized by its cloudy and nebulous patterns. Quarried in China, this granite is known for its unique appearance, which can bring elegance and a modern touch to various design applications.
Physical and Mechanical Properties:
-
Water Absorption:Typically low, often around 0.3% to 0.5%, contributing to its durability.
-
Density:Approximately 2.68 - 2.73 g/cm³, which is standard for most granites, ensuring robustness and weightiness.
-
Flexural Strength:Estimated at 13-15 MPa. This represents its resistance to bending, making it suitable for horizontal applications like countertops.
-
Compressive Strength:Generally falls between 160-180 MPa, illustrating its capacity to withstand substantial loads without cracking.
-
Hardness:Mohs scale rating of around 6 to 7, indicating good scratch resistance.
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Porosity:Very low, less than 1%, ensuring that the stone is not easily penetrated by liquids or gases.
-
Slip Resistance:Coefficient of friction can vary depending on the finish but is typically between 0.6-0.8 when tested according to standardized methods, making it suitable for flooring with some texture finishes.
Chemical and Mineral Composition:
-
Quartz: 20-30%
-
Feldspar (Albite and Orthoclase): 50-60%
-
Biotite and Hornblende: 5-10%
-
Other Minerals (e.g., Magnetite, etc.): 2-5%
Note: Exact percentages can vary based on the specific quarry and extraction location.
Usage:
- Exterior and Interior Flooring: Due to its durability and aesthetic appeal.
- Kitchen Countertops: Its low porosity and high strength make it ideal.
- Wall Cladding: Both for exterior and interior applications due to its unique appearance.
- Bathroom Vanities and Sinks: Water resistance enhances its suitability.
- Fireplace Surrounds: Offers stylish heat resistance.
Maintenance:
- Sealing: Periodic sealing (every 1-2 years) recommended to maintain surface resistance.
- Cleaning: Use a pH-balanced cleaner to avoid damaging the stone. Avoid acidic or abrasive cleaning agents.
Cutting Sizes (in cm):
- Tiles: Commonly available in dimensions like 30x30, 30x60, 60x60, 60x120 cm.
- Slabs: Standard slab sizes are usually around 120-200 cm in length and width, 2 cm or 3 cm thickness being common.
Common Surface Finish Options:
- Polished: Highly reflective surface, enhances color and patterns.
- Honed: Smooth, with a matte appearance and less reflection.
- Leathered: Textured, subtle sheen which provides better slip resistance.
- Brushed: Soft texture with aged appearance.
- Flamed: Rough surface for slip resistance, excellent for outdoor use.
Nebula Black Granite, with its sophisticated allure and sturdy characteristics, is an excellent choice for diverse architectural applications, offering both functionality and aesthetic appeal.









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