Kota Black Limestone

About
Item Details
- Material Type:
- Limestone
- Origin:
India (Rajasthan) - Primary Color(s):
- Black
- Recommended Usage:
- Monuments, building stone, ornamental stone, stairs, interior, exterior wall and floor applications, mosaic, wall panels, reliefs, window sills, balustrades, columns, wall and pool copings, pool pavers, sculptures, fireplaces, cobbles, pavers, curbstone
- Additional Names:
- Lime Black Limestone, Kota Black Limestone, Kota Black Stone, Kadappa Black Limestone, Cuddapah Black Limestone, Lime Black Stone, Kota Black, Kota Black Limestone
- Finished Surface:
- Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling
Testing
- Water Absorption:
- 1.0% - 1.5%
- Density:
- 2500 - 2600 kg/m³
- Flexural Strength:
- 14 - 18 MPa
- Compressive Strength:
- 110 - 160 MPa
- Stone texture:
- a durable, fine-grained dolomitic limestone quarried in the Kota district of Rajasthan, India. It is highly valued for its deep, consistent charcoal-to-black color, which can be sealed to maintain its dark tones or allowed to weather naturally to a muted blue-grey patina. The stone's durability and elegant appearance make it popular for both interior and exterior use.
Description
Kota Black Limestone is a high-quality natural stone quarried in the Kota district of Rajasthan, India. It is renowned for its distinctive, deep charcoal-to-black color and elegant appearance. Below are the detailed descriptions and properties of Kota Black Limestone:
Physical and Mechanical Properties:
- Water Absorption:Typically less than 1.0% to 1.5%, indicating low porosity and good resistance to water-related damage.
- Density:Approximately 2,500 to 2,600 kg/m³, reflecting its solid and dense nature.
- Flexural Strength:Usually ranges from 14 to 18 MPa, suggesting good resistance to bending or transverse stresses.
- Compressive Strength:Generally between 110 to 160 MPa, which ensures it can withstand significant loads or pressure.
- Hardness:Falls between 3 to 4 on the Mohs scale, indicating moderate scratch resistance.
- Porosity:Low porosity due to its dense composition, contributing to its durability and reduced water absorption.
- Slip Resistance:Provides good slip resistance, especially when honed or flamed, making it suitable for flooring in wet areas.
Chemical and Mineral Compositions:
- Calcium Carbonate (CaCO3):Dominant mineral, making up approximately 50% to 55% by weight.
- Magnesium Carbonate (MgCO3):Comprises about 30% to 35% by weight, indicative of its dolomitic nature.
- Silica (SiO2):Presence of about 5% to 8% by weight.
- Alumina, Iron Oxide, and Other Minerals:Typically less than 5% combined, contributing trace amounts to its coloration and properties.
Detailed Usage:
- Interior Use:Flooring, wall cladding, countertops, staircases, and decorative elements due to its aesthetic appeal.
- Exterior Use:Patios, pool surrounds, pathways, and driveways owing to its durability and weather resistance.
Maintenance:
-
Sealing:Can be sealed to preserve its dark tones or left unsealed to develop a natural patina over time.
-
Cleaning:Regular sweeping and occasional mopping with a non-acidic cleaner are recommended to maintain its appearance.
Cutting Sizes (cm):
- Typically available in tiles and slabs of various sizes such as:
- 30x30, 30x60, 60x60, and custom sizes as per project requirements.
Available Surface Finish Options:
- Honed:Smooth, matte finish for a modern look suitable for interiors.
- Polished:High-gloss finish enhancing color and providing a sleek appearance.
- Brushed:Textured finish for a rustic appeal, offering increased slip resistance.
- Flamed:Rough surface with excellent slip resistance, ideal for exterior applications.
- Natural or Riven:Retains the stone's natural texture, contributing to slip resistance and a traditional appearance.
Kota Black Limestone is revered for combining elegance with practicality, making it a favorite choice in both residential and commercial settings. Its consistent color, durability, and versatility ensure it meets a wide range of architectural and design needs.





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