K. Black Sandstone

K. Black Sandstone — a deep, dark stone sourced from the Kota region of Rajasthan — is the boldest member of Stone Harbor’s sandstone range. Its near-black to dark charcoal colouration creates a dramatic visual statement that has made dark Indian sandstones increasingly sought-after in contemporary architecture and premium residential design. In a product category dominated by warm terracotta and neutral grey tones, K. Black stands apart.

The stone is quarried in Rajasthan, processed to export standards, and exported by Stone Harbor to clients across Europe, the Middle East, and Asia. It is particularly effective as a contrast element — paired with lighter stones or pale interiors for maximum visual impact, or used in monochrome installations where depth and texture are the design intent.

Origin and Composition

K. Black Sandstone is a sedimentary stone from the Kota region of Rajasthan, India. Its dark colouration comes from high concentrations of dark minerals and oxidised organic matter within the quartz-dominant matrix. The stone has a fine grain structure and good compressive strength, making it suitable for both decorative and structural applications.

Technical Properties

• Stone Type: Sedimentary sandstone
• Commercial Name: K. Black (Kota Black Sandstone)
• Origin: Kota region, Rajasthan, India
• Colour: Near-black to dark charcoal; subtle grey undertones
• Texture: Fine-grained
• Frost Resistance: Yes
• Weather Resistance: Good
• Density: Approximately 2.4 – 2.6 g/cm³

Available Finishes

• Natural Cleft: Full dark character with riven texture.
• Honed: Smooth matte surface deepening the dark tone. Popular for contemporary interiors.
• Polished: Near-mirror finish with dramatic dark depth. Interior feature applications.
• Sandblasted: Non-slip surface for outdoor paving. Dark tone becomes slightly lighter.
• Sawn: Machine-cut precision for tiling and cladding.

Standard Sizes and Dimensions

• 29 x 29 cm | 29 x 60 cm | 40 x 40 cm | 60 x 60 cm | 60 x 90 cm
• Custom sizes on request
• Thickness: 20 mm to 30 mm

Applications

• Contemporary Interior Flooring: Dark stone creates drama in modern residential and commercial spaces.
• Feature Walls: High-impact interior accent surfaces.
• Exterior Paving and Cladding: Commercial facades, luxury residential exteriors.
• Pool Surrounds: Dark stone framing water creates a luxury resort aesthetic.
• Steps and Architectural Elements: Structural applications with visual presence.

Contact Stone Harbor for samples, export pricing, and specifications.