Birjand Granite Stone

Birjand Granite: Technical Specifications & Architectural Uses

Birjand granite is a durable natural stone from the Birjand region of South Khorasan, Iran. Characterized by its low water absorption (0.01% to 0.3% by weight) and high compressive strength (ranging from 114 to 340 MPa), it is a reliable choice for both high-traffic indoor flooring and exterior building facades.

Pros and Cons of Birjand Granite

Understanding the technical characteristics helps in selecting the right variety for your specific environment:

• Pros: High compressive strength (up to 340 MPa); very low porosity (0.01% to 0.3%), reducing liquid penetration; high suitability for both interior and exterior applications.
• Cons: Natural color variations and veining patterns occur between different batches; surfaces in high-moisture or acidic environments may require professional sealing to maintain appearance.

Distinctive Features

The technical performance of Birjand Granite is defined by its geological composition:

• Physical Strength: Compressive strength is recorded between 114 and 340 MPa (per ASTM C170), providing high structural reliability for heavy-load areas.
• Low Absorption: Water absorption levels typically range from 0.01% to 0.3% (per ASTM C97), making it resistant to freeze-thaw cycles in exterior environments.
• Surface Versatility: Available in multiple finishes, including Polished, Honed, Leathered, Sandblasted, and Flamed, to meet various aesthetic and slip-resistance requirements.
• Texture and Color: Characterized by unique veining, with color profiles including green, gold, black, brown, and red varieties.

Architectural Applications

Birjand Granite is suitable for a wide range of professional architectural uses:

• Exterior Applications: Building facades, cladding, and landscaping, thanks to its weather resistance and low porosity.
• Interior Applications: Commercial and residential flooring, wall cladding, staircases, and decorative elements like countertops or elevator cabins.
• Maintenance Note: For applications in kitchens, bathrooms, or high-traffic commercial zones, applying a suitable sealer and using pH-neutral cleaners is recommended to protect the stone from potential staining or acid etching.

Ordering & Commercial Terms

To ensure a smooth procurement process, please note our commercial procedures:

• Inquiry & Quotation: Contact us for a "Proforma Invoice" (Price Inquiry). Please provide project specifications for an accurate estimate. Official pricing is provided within 2 working days and remains valid for 3 working days.
• Finalization: A transaction is considered finalized only upon issuance of the "Final Invoice."
• Payment: All payments must be made via bank transfer to the account specified in the final invoice. We do not offer online payment gateways or cash-on-delivery services.
• Logistics: The buyer is responsible for selecting the carrier and covering all costs related to loading, transportation, and unloading. We can provide technical guidance on logistics upon request.

Technical Specifications of Birjand Granite Stone

The specifications below represent the typical range for Birjand Granite. As natural stone varies by quarry and batch, we recommend requesting a laboratory-tested data sheet or a formal quote for project-critical-level accuracy.

Comparing Birjand Granite Stone with Similar Products

This comparison table helps you evaluate the technical performance and suitability of Birjand Granite against other granite options based on absorption, strength, and specific usage requirements.

Which one should you choose?

• If you need a durable stone for outdoor facades or high-traffic flooring, Birjand Granite or Picasso Granite are suitable candidates due to their low water absorption levels.
• If your project requires color variety (such as green, gold, black, brown, or red) for decorative partitions or architectural accents, Birjand Granite offers diverse color palettes.
• If you are looking for an interior-only stone with a dramatic black and gold pattern, Infinity Gold Granite is a specialized choice; however, its higher water absorption makes it less suitable for outdoor or wet environments.
• If you require commercial flooring with stable compressive strength, Titanium Granite Brazil is an option for professional environments.

Because Birjand Granite is a natural stone, significant variations in color, texture, and veining patterns are expected between different quarry blocks. We highly recommend inspecting physical samples to ensure the specific aesthetic matches your architectural requirements. Surface finishes should be chosen based on the intended environment: while a polished finish provides high luster for interiors, leathered or flamed textures may be more suitable for exterior areas to provide enhanced slip resistance. Available standard thicknesses include 2 cm, 3 cm, and 4 cm. For precise specifications regarding slab, tile, or stair dimensions, please request a formal quote from our technical experts. For specialized applications, such as high-traffic commercial flooring or exterior facades, professional consultation is advised regarding appropriate sealing and maintenance to preserve the stone's characteristics.

Selection and Installation Considerations

When selecting Birjand Granite, review a physical sample from the intended batch where possible. Natural differences in veining, color, tone and texture may occur between samples and batches, and image colors may vary slightly from the stone supplied. The datasheet reports water absorption of 0.01 to 0.3 percent by weight; the value for the selected species or block should be confirmed for project-specific decisions.

For exterior or wet applications, low water absorption may support better performance, but it does not by itself confirm freeze-thaw resistance. Final selection should consider the intended use, surface finish, exposure conditions, installation details, and an applicable test report for the selected block or sample, including a freeze-thaw test such as ASTM C666 where required. Structural design, stone thickness, support and anchoring should be determined according to the project requirements and by qualified project professionals.

Use installation details appropriate to the application and finish. In areas exposed to acidic substances, avoid direct contact with acids and use neutral cleaning products; sealing does not neutralize acids or prevent acid etching. For a project quotation and technical data sheet, provide the required specifications to the sales department. A proforma invoice is for inquiry purposes and is non-binding. The sales expert will provide a definite price within a maximum of 2 working days, and the confirmed price is valid for 3 working days. The final invoice is the transaction document. Review the material’s quantity, quality, dimensions and color before loading, because claims concerning these items are not accepted after the shipment has been loaded and dispatched.