Black Granite Specification
Physical Properties:
Density: 2.63 - 3.30 g/cm³
Hardness: 6 - 7 on the Mohs scale
Compressive Strength: ~200 MPa
Water Absorption: <0.5%
Thermal and Chemical Properties:
Thermal Conductivity: 1.7 - 3.0 W/m�·K
Coefficient of Thermal Expansion: 4.7 - 7.5 x 10^-6/�°C
Chemical Resistance: Resistant to acids and alkalis
Aesthetic Properties:
Color: Uniform black to black with white, gold, or green flecks
Finish: Polished, honed, leathered, flamed
Pattern: Solid, speckled, or veined
Sizes and Formats:
Slabs: 2 cm (3/4 inch) and 3 cm (1 1/4 inch) thick, commonly 240 cm x 120 cm (96 inches x 48 inches)
Tiles: Standard sizes 12x12 inches, 18x18 inches, 24x24 inches, thickness 1 cm (3/8 inch) to 2 cm (3/4 inch)
Custom Cuts: Available
Installation and Maintenance:
Sealing: Recommended annually
Cleaning: pH-neutral cleaners
Handling: Proper techniques to prevent breakage
Common Applications:
Countertops
Flooring
Wall cladding
Outdoor uses (patios, pathways)
Monuments and memorials
Conclusion
Black granite is durable, low-porosity, and visually appealing, suitable for a variety of indoor and outdoor applications. Proper care and maintenance ensure its longevity and beauty.
