Appearance

• Color:Predominantly cloudy medium to dark gray base with soft, irregular light gray to whitish streaks and veins. The overall tone is elegant and subtle, providing a sophisticated natural look.
• Texture: Fine to medium-grained crystalline texture typical of marble, with a smooth surface when polished.
• Pattern: Soft, flowing veins and streaks creating a natural, cloud-like pattern. No sharp contrasts; the veins blend gently into the gray background, giving a uniform yet dynamic appearance.

Physical and Mechanical Properties

(Typical Ranges)

• Density (Bulk Density): Approximately 2.68 - 2.75 g/cm³
• Compressive Strength: 80 - 120 MPa (megapascals)
• Flexural Strength: 8 - 15 MPa
• Water Absorption: 0.15% - 0.3% by weight (indicating low porosity)
• Porosity: Around 0.5% - 1.0%
• Mohs Hardness: 3 - 4 
• Slip Resistance (COF - Coefficient of Friction): Polished surface 0.5-0.6 (may be slippery when wet); honed or textured finishes improve slip resistance.

Chemical and Mineral Composition

(Approximate % by Weight)

• Calcium Carbonate (CaCO₃): ~90 - 98% (primary mineral: calcite)
• Magnesium Carbonate (MgCO₃): ~1 - 3%
• Quartz (SiO₂): ~0.5 - 1.5% (minor)
• Other Minerals: Clay, mica, iron oxides, traces of graphite (responsible for gray coloration)
• Chemical Stability: Generally stable but sensitive to acids (etches with acidic cleaners).

Usage

Interior applications preferred due to moderate hardness and porosity:

• Flooring (residential, commercial)
• Wall cladding and panels
• Bathroom and kitchen countertops (with proper sealing)
• Decorative elements, columns, fireplace surrounds
• Furniture tops and staircases (honed or leathered finish recommended for slip resistance)
• Limited outdoor use in non-freezing climates or with protective treatments.

Maintenance

• Requires regular sealing to reduce staining and water absorption.
• Clean with pH-neutral, non-acidic cleaners to avoid etching.
• Avoid harsh chemicals or abrasive tools.
• Polished finish may need periodic repolishing to restore shine.

Cutting Sizes and Dimensions

Slab thickness: Commonly available in 2 cm and 3 cm slabs.

Standard slab size: Approximately 240 cm × 120 cm (varies by quarry/supplier)

Tile sizes: Common cuts include 30×30 cm, 60×60 cm, 60×120 cm, and custom cuts per project requirements.

Surface Finish Options

• Polished: High gloss, smooth, enhances color depth, but can be slippery.
• Honed: Matte or satin finish, less reflective, better slip resistance.
• Leathered: Slightly textured, natural finish with a soft sheen, excellent for flooring.
• Sandblasted or Brushed: For more texture and slip resistance, used mostly on flooring or exterior cladding.