Key Features:

• Very high compressive strength and impact resistance
• Excellent abrasion resistance for high-traffic areas
• Low water absorption and strong weather durability
• High frost resistance and stable performance outdoors
• Color stability and long-term surface integrity
• Heat resistance and good performance under temperature variation
• Slip resistance depends on finish (flamed / bush-hammered / sandblasted recommended for safety)

Main Iranian Quarries

• Nehbandan Quarry – South Khorasan Province
• Natanz Quarry – Isfahan Province
• Aran & Bidgol (Kashan) Region – Isfahan Province
• Khoy Region – West Azerbaijan Province

Applications

• Exterior façades and architectural cladding systems
• Exterior paving, sidewalks, plazas, and public walkways
• Stairs, steps, landings, ramps, and entrance zones
• Commercial flooring in malls, airports, stations, and high-traffic buildings
• Interior wall cladding, feature walls, and architectural panels
• Kitchen countertops and worktops (project-specific selection and sealing required)
• Urban infrastructure: curbstones, bollards, and street elements
• Landscaping: garden pathways, terraces, and outdoor courtyards
• Monuments, memorials, and stone artifacts
• Fireplace surrounds and decorative architectural elements

Supplier Status – Karimi Stone

Additional Information

Black Granite is a dense igneous stone with a compact crystalline structure that delivers exceptional strength and long-term durability. Its deep, architectural color creates a premium and modern look, while its low porosity supports stable performance in outdoor environments. For safety-focused applications such as stairs and exterior paving, textured finishes (flamed, bush-hammered, or sandblasted) are commonly recommended to improve traction. With correct selection, processing, and quality control, black granite is a reliable solution for high-traffic commercial projects, urban infrastructure, and exterior architectural surfaces.

1. General Characteristics (Black Granite Introduction)

• High-performance stone for heavy-use areas such as paving, stairs, and public spaces
• Stable color and surface integrity over long-term use
• Suitable for both modern architectural design and classic urban applications

2. Technical & Aesthetic Properties

Appearance:

• Deep black to dark charcoal background with subtle mineral grains (varies by quarry)
• Works well with metal, glass, concrete, and warm natural materials
• Finishes can range from high-gloss (polished) to safety-textured (flamed/bush-hammered)

Key Technical Properties:

• Very high density and compact structure
• Excellent abrasion resistance
• High compressive strength
• Low water absorption (compared to many sedimentary stones)
• High weather and frost resistance
• Strong long-term performance in outdoor and high-traffic environments

3. Iranian Black Granite

• Iran produces multiple black granite selections for architecture and infrastructure projects
• Quality depends on block health, grain consistency, and controlled processing
• Common export formats include slabs, tiles, pavers, steps, and cut-to-size panels

4. Sorting (Grading) System

• No universal standard; grading varies by quarry and factory
• General grading criteria:
  • Uniform darkness and minimal tone deviation
  • Consistent grain size and mineral distribution
  • Low micro-cracking and sound block structure
  • Stable surface quality after finishing (especially polished)
• Project-based sorting can be customized for uniform or natural variation styles

5. Why Black Granite from Karimi Stone?

• Professional block selection and consistent batch control
• Advanced processing lines for stable thickness and finish uniformity
• Multiple finishes available for both decorative and safety-focused applications
• Strict quality control during cutting, calibration, finishing, and packing
• Export-grade packaging for slabs, tiles, and cut-to-size products
• Ability to supply blocks, slabs, tiles, and custom sizes based on project drawings
• Flexible logistics support for domestic and international shipments

Technical Data – Black Granite (Typical Range)