China G654 Sesame Grey Granite Flamed Finish Supplier, Factories
Product Description
📋Products Information
G654 Sesame Grey Granite, industry standard designation G654, also known as Zhangqiu Black, ‘Sesame Black’ or ‘Deep Grey Sesame Stone’. For international trade quotations, the English name may be abbreviated as G654 Grey Granite or G654 Sesame Black Granite. This facilitates overseas client searches, enquiries, and procurement, aligns with keyword optimisation for export websites, and enhances product visibility.
The primary source is concentrated in Zhangqiu County, Shandong Province, China, representing the sole core origin for G654 Sesame Grey. Leveraging premium mineral veins in northern Shandong, the stone exhibits consistent quality, uniform colouration, and fine-grained texture with minimal impurities. The region's proximity to Xiamen Port and Zhangzhou Port facilitates efficient maritime transport, providing robust support for overseas shipments. Leveraging China's export advantages in granite stone, it enables direct global distribution, significantly reducing logistics cycles and overseas clients' shipping costs. This makes it the primary distribution hub for China's dark grey granite exports.
The G654 Sesame Grey vein exhibits concentrated distribution and abundant reserves, with proven reserves exceeding 1.5 billion cubic metres. Formed during the Mesozoic Yanshanian period, prolonged geological evolution and mineral enrichment have produced its distinctive deep grey base colour and uniform sesame-like texture. The stone exhibits strong integrity with no significant fissures, enabling long-term stable supply. It accommodates both large-scale overseas project procurement and small-to-medium custom orders, perfectly matching diverse international trade scenarios without risk of supply shortages.
Dominated by deep grey and charcoal tones, the base colour is uniformly rich and profoundly stable. The surface features naturally distributed, fine light grey and white sesame-like speckles. These speckles are uniformly sized and arranged in an orderly yet staggered pattern, avoiding any sense of disorder. This lends the stone an inherently minimalist, sophisticated, and dignified character.
Colour variation within the same batch is ≤0.8 grade, demonstrating excellent colour stability. Distinct from ordinary grey granite, it combines decorative appeal with practicality, complementing diverse design styles including modern minimalism, industrial, new Chinese, and European aesthetics. It caters to varied overseas client preferences, particularly aligning with the demand for premium dark grey decorative materials in European, Australian, and Middle Eastern markets.
Primarily quartz (>70%), potassium feldspar (18%-22%), and plagioclase feldspar, with minor black mica and magnetite. Forms a medium-fine grain structure with a hard, fine texture and no visible pores. Achieves high gloss upon polishing, offering outstanding resistance to abrasion, corrosion, weathering, and staining. This makes it an ideal choice for both interior and exterior decoration, as well as long-term outdoor projects. The balanced natural mineral composition also creates a distinctive sesame-like speckled texture, serving as the product's core visual identifier with exceptional recognisability.
A core global supplier of premium dark grey granite, renowned for its ‘subdued colour, consistent quality, high cost-effectiveness, and broad adaptability’. It serves as the mainstream dark grey stone for high-end architectural decoration, municipal projects, and landscaping. Its export volume consistently ranks among China's top grey granites, enjoying exceptional market recognition particularly in Europe, Australia, and Southeast Asia. As a distinctive strength in China's stone exports, it is highly favoured by overseas designers and buyers.
⚙️Core Physical and Chemical Properties
| Performance Indicator | Numerical Range (G654 Sesame Grey Standard) | Industry Significance (Key Highlights) |
|---|---|---|
| Bulk Density | 2.70–2.75 g/cm³ | Featuring a dense structure and high load-bearing capacity, it is suitable for external wall dry-hanging, floor paving, curtain wall decoration, and heavy-duty applications. It meets the stringent requirements of premium overseas projects, exhibits minimal deformation over extended use, ensures structural stability, and complies with European and American load-bearing standards for building materials (ASTM C615). |
| Water Absorption Rate | ≤0.05% | Exceptionally low water absorption with outstanding freeze resistance, impermeability, moisture resistance, and stain resistance. Suitable for humid, rainy, snowy, frigid, and tropical monsoon climates. Requires no additional moisture-proofing or stain-resistant treatments while effectively preventing stone contamination and deterioration. Significantly reduces long-term maintenance costs for overseas clients, adapting to diverse global climates. |
| Mohs Hardness | Grade 6.5–7.5 | Moderate hardness with outstanding abrasion resistance, scratch resistance, and impact resistance. Suitable for high-traffic areas and long-term outdoor use, it resists scratches and damage, substantially reducing overseas clients' maintenance costs and enhancing project cost-effectiveness. Additionally, it is easily cut, polished, and formed to meet complex customisation requirements. |
| Compressive Strength | 180–280 MPa | Exceptional compressive strength enables use in heavy-duty applications such as premium curtain walls, municipal plazas, airport VIP zones, and high-end industrial facilities. Meets stringent strength standards for high-end projects across Europe, America, Japan, Korea, and the Middle East, accommodating diverse large-scale engineering requirements without structural safety concerns. |
| Flexural Strength | 20–30 MPa | Its commendable flexural strength resists fracture, making it suitable for extensive installations, curved curtain walls, and intricate custom shaping. This adaptability fulfils bespoke overseas project requirements, accommodating diverse specialised designs and enhancing decorative versatility. |
| Abrasion Resistance (Wear Volume) | <0.18 g/cm² | Outstanding abrasion resistance ensures an outdoor lifespan exceeding 55 years with minimal maintenance. Suitable for high-traffic outdoor settings and high-frequency indoor areas, it maintains an excellent appearance over extended use. This reduces long-term operational costs for overseas clients, enhancing the project's overall cost-effectiveness. |
| Acid Resistance Rate | ≥98.0% | Resistant to acid rain and chemical corrosion, suitable for industrial zones, polluted environments, and coastal regions. Exhibits no corrosion or discolouration over extended use, adapting to diverse global settings—particularly ideal for coastal nations' outdoor projects—significantly extending stone longevity. |
| Alkali Resistance Rate | ≥98.8% | Exceptional alkali resistance allows safe pairing with diverse building materials without chemical reaction risks. Suitable for extensive indoor and outdoor decorative applications, it simplifies design and construction complexity while boosting efficiency, meeting varied overseas project requirements. |
| Weathering Resistance | Excellent | Maintains stability in extreme temperatures from -45°C to 75°C. Exhibits no significant colour variation, weathering, or deformation after 30+ years of outdoor use. Suitable for global climates including polar, tropical, and subtropical regions, eliminating concerns about climatic effects on stone appearance. Meets diverse overseas project requirements. |
| Radioactivity | Class A (Compliant with International Standards) | Safe for both indoor and outdoor use, compliant with premium environmental and safety standards including European/American (ASTM C615), Japanese/Korean (JIS A 5201), Middle Eastern (SASO), and Australian (AS 3959) specifications. Ensures seamless customs clearance for direct application in diverse civil and public buildings, mitigating overseas import risks. |
🧱Core Sub-Categories
G654 Sesame Grey is categorised into three core sub-categories based on shade depth and sesame speckle density. Each category possesses distinct advantages, catering to varying overseas market demands and project scenarios. Recommendations can be tailored flexibly according to client budgets, aesthetic preferences, and application contexts. Below are the most sought-after categories in international trade, enabling overseas clients to swiftly identify requirements and enhance enquiry conversion rates:
🛠️Processing Techniques and Surface Effects
• Standard large panels: 2400×1200×20/30mm, 3000×1500×20/30mm, 3200×1600×20/30mm (Premium project-specific large panel dimensions, suitable for overseas large-scale curtain walls and extensive flooring installations. Meets bulk procurement requirements for major projects, minimises joint visibility, enhances decorative effect, and reduces construction costs)
• Standard Thin Slabs: 600×600×10/15mm, 800×800×10/15mm, 1000×1000×15mm (Suitable for overseas high-end interior decoration, lightweight curtain walls, and tabletop installations. Facilitates transportation and installation, reduces logistics costs, enhances delivery efficiency, and accommodates small-to-medium batch procurement requirements)
• Engineering Customisation: Cutting to any dimensions per overseas client drawings, with processing tolerances ≤±0.2mm. Suitable for diverse high-end architectural, municipal projects and bespoke decorative requirements. Leveraging digital processing equipment, precision far exceeds industry standards to meet stringent overseas high-end project demands. Panel thickness and dimensions can be adjusted per client specifications, flexibly accommodating various specialised scenarios.
• Polished Surface: Gloss ≥95°, offering exceptional mirror-like effects. The deep grey base exhibits a warm, translucent quality with distinct sesame-like speckles, enhancing premium aesthetics. This finish is the preferred choice for high-end interior and exterior decoration, ideal for overseas luxury hotel lobbies, villa flooring, and curtain wall cladding, projecting a dignified and sophisticated ambience. Select premium grades achieve gloss levels of 100-110°, delivering superior decorative impact and commanding favour in premium European, American, and Australian markets.
• Flamed Finish: Offers slip resistance with a coarse texture, slip coefficient ≥0.85. Its richer, antique-inspired colour palette accentuates the sesame-like speckles. Ideal for premium municipal squares, landscaped walkways, and upscale residential pathways, balancing functionality with aesthetic appeal. A frequent choice for overseas municipal projects and outdoor landscapes, particularly suited for outdoor paving in regions with frequent rain, snow, or ice, enhancing safety.
• Bush-hammered: Features uniformly fine, textured relief. Combines slip resistance and durability with tactile and decorative qualities. The deep grey base complements sesame-like speckles. Suitable for premium dry-hung exterior walls, landscape balustrades, and stair treads, emphasising natural elegance. Ideal for high-end residential developments and scenic landscape projects overseas, particularly favoured in Southeast Asian and Middle Eastern markets.
• Honed Finish: Soft matte sheen exudes understated luxury with gentle, non-glare colour tones. Naturally diffused speckled patterns suit premium interior flooring, stair treads, and countertops. Compatible with modern minimalist, neo-minimalist, and contemporary Chinese design aesthetics, it meets overseas high-end residential and hotel fit-out requirements while elevating spatial sophistication.
• Sandblasted Finish: Delivers a refined, frosted texture with excellent stain resistance and ease of cleaning. Features a uniform, gentle colouration with subtly visible speckled patterns. Ideal for premium exterior walls and interior feature walls, complementing minimalist and high-end design aesthetics. A popular choice for contemporary architectural decoration overseas, particularly favoured by clients seeking understated sophistication and minimalist styles.
• Natural Split: A rugged, primal texture where deep grey undertones blend naturally with sesame-like speckles, exuding inherent rustic charm. Suitable for premium landscape stones, doorstep stones, feature walls, and garden sculptures, meeting high-end landscape design requirements. Ideal for overseas parks, scenic areas, and upmarket residential landscape projects, showcasing natural aesthetics.
• Premium Municipal Applications: High-end kerbstones, tree surrounds, stepping stones, tactile paving, and kerb stones (suited for overseas high-end municipal and scenic area upgrades; dimensions and profiles customisable to local standards; compliant with diverse national municipal engineering codes; meets overseas municipal construction requirements; high demand for bulk procurement).
• Architectural Decoration: Curved curtain wall panels, carved ornaments, columns, Roman columns, door frames, window frames, premium dry-hung curtain wall panels (core bespoke products for high-end architecture, compatible with diverse international architectural styles. Complex shapes crafted to client designs enhance structural character and elevate building prestige)
• Landscape and Memorial: Stone balustrades, landscape stones, stone tables and benches, feng shui spheres, garden sculptures, memorials, gravestones (Popular in premium European, American, Japanese, Korean, and Middle Eastern markets. Customisable designs and engravings align with local commemorative traditions and landscape aesthetics, particularly suited for overseas Chinese communities and memorial park projects. Deep grey base colour symbolises solemnity and eternity).
🏛️Primary Application Areas
The predominant export application, accounting for over 70% of orders.
• External wall dry-hanging and curtain walls: Premium hotels, office towers, government buildings, luxury villas, and commercial complexes. Its deep grey base with evenly distributed sesame speckles exudes dignified opulence while retaining minimalist texture, elevating architectural sophistication. Aligning with overseas high-end architectural aesthetics and quality standards, it is the preferred deep grey stone for premium curtain wall projects abroad.
• Interior Decoration: Ideal for luxury hotel lobbies, shopping mall atriums, villa flooring, stair treads, feature walls, and countertops. Complements upscale interior designs, emphasising quality and natural charm.
Specialised export sector with sustained growth.
• Municipal Squares: Premium civic plazas, scenic pathways, cultural square paving, and stair treads. Combining utility with ornamental appeal, its sesame-speckled texture lends an inherent gravitas. Suited for overseas municipal upgrades and park/scenic area developments.
• Commemorative Projects: Monuments, memorial halls, martyrs' cemeteries, and pedestals for statues of notable figures. The deep grey base colour symbolises solemnity, reverence, and eternity, making it ideal for commemorative settings.
Hot growth sector in foreign trade.
• Landscape Architecture: Premium residential estate landscaping, park design, golf courses, scenic area feature stones, and stone balustrades. Complements high-end European, American, Japanese, Korean, and Middle Eastern garden design aesthetics.
• Signature Architecture: Leveraging G654 Sesame Grey's natural texture for high-end guesthouses, cultural town wall construction, industrial-style exhibition hall fit-outs, and New Chinese-style architectural decoration.
High-end export segments.
• Premium Countertops: Ideal for hotel bars, luxury villa washbasins, dining surfaces, and kitchen worktops. Its refined texture offers easy maintenance with exceptional resistance to wear, oil stains, and contamination.
• Premium Gravestones & Memorials: Popular in high-end European, American, Japanese, Korean, and Middle Eastern markets.
• Premium Industrial Stone: Ideal for high-end factory flooring, anti-corrosion projects, and workshop surfaces.
⭐Why Choose G654 Sesame Grey Granite
Sourced exclusively from Fujian, China's dedicated quarry, this granite features a deep grey base with uniformly distributed sesame-like speckles. Its distinctive texture and subdued colouration distinguish it from ordinary grey granites, blending decorative appeal with natural character. It complements diverse overseas design aesthetics—including modern minimalism, industrial style, new Chinese, and European—catering to varied international client preferences. Its high market acceptance elevates project aesthetics for overseas customers.
Boasting a Mohs hardness of 6.5–7.5, it surpasses comparable imported dark grey granites in abrasion resistance, compressive strength, weather resistance, and stain resistance. With an outdoor lifespan exceeding 55 years and minimal maintenance requirements, it significantly reduces long-term upkeep costs for overseas clients. Suited for high-end projects demanding enduring performance, it enhances cost-effectiveness while effectively preventing stone contamination and deterioration.
Leveraging China's mature high-end stone processing supply chain, equipped with advanced digital machinery and specialised technical teams. Offers ease of cutting, polishing, and shaping, accommodating oversized slabs, complex custom profiles, and intricate carving commissions. Processing tolerances ≤±0.2mm meet demands for overseas premium projects and bespoke orders, adapting to diverse specialised applications.
Class A radioactivity compliance meets stringent environmental and safety standards across Europe, America, Japan, Korea, the Middle East, Australia and beyond. Exceptional weather resistance adapts to global climates (suitable for cold, tropical and subtropical zones), fulfilling premium project quality requirements in diverse nations and settings. Seamless customs clearance ensures particular suitability for core export markets including Europe, Australia and Southeast Asia.
China possesses an integrated industrial chain encompassing quarrying, processing, quality inspection, and logistics. Core production areas are proximate to major ports such as Xiamen and Zhangzhou, facilitating efficient maritime transport to key global high-end market ports. Europe, Australia, and Southeast Asia constitute primary export destinations, supporting market expansion within RCEP member states. We pioneer an integrated development model combining bespoke high-end solutions, cross-border e-commerce, and overseas warehousing, enabling efficient delivery for overseas clients while reducing logistics costs.
Compared to imported dark grey granite equivalents, G654 Sesame Grey offers superior pricing (market rate approx. RMB 115-130/m², inclusive of 3% reasonable wastage). It delivers consistent quality and diverse product ranges to meet varying budget requirements. Years of export experience have cultivated a robust market reputation, Private enterprises demonstrate formidable dynamism, accounting for over 90% of exports. Leveraging a mature industrial ecosystem, they empower overseas clients to reduce procurement costs, enhance project competitiveness, and capture the global premium dark grey stone market.
🚢Packaging and Transportation
Premium wooden pallets + moisture-proof film + bubble wrap + steel strapping reinforcement. Maximum pallet weight ≤ 1.8 tonnes. Premium protective padding between slabs prevents scratches and damage during transit. For G654 Sesame Grey's distinctive speckled texture, an additional texture protection layer safeguards the sesame spots. Complies with premium stone export packaging standards. Custom packaging solutions available per overseas client requirements, adaptable to diverse port transport specifications to ensure goods arrive intact.
Core production areas are proximate to major ports such as Xiamen and Zhangzhou, facilitating efficient sea freight. We arrange shipping via 20-foot containers or 40-foot high-cube containers, delivering directly to key premium market ports worldwide (Europe, America, Australia, Japan, Korea, Middle East, and Southeast Asia). Europe, Australia, and Southeast Asia form the core export markets. Logistics costs are manageable, with dedicated personnel tracking shipments throughout the journey and providing timely updates on progress to ensure punctual delivery, thereby enhancing the customer procurement experience.
One 20-foot container (approximately 22–28 tonnes). Mixed loading is supported (different product categories, specifications, and surface treatments may be combined), catering to small-to-medium batch high-end procurement needs. We also undertake large-volume high-end project orders, offering customised packaging and transport solutions to flexibly accommodate overseas client requirements, aligning with the export characteristics of private enterprises.
❓Frequently Asked Questions
The core subcategories comprise G654 Class A (Premium), G654 Class B (Standard), and G654 Class C (Coarse-grained): Class A is primarily suited for high-end interior finishing and premium curtain walls; Class B is ideal for municipal projects and standard decoration (offering the best value for money); Class C is best suited for outdoor landscaping and commemorative projects. We recommend suitable categories based on project context, budget, and aesthetic requirements, providing samples for client confirmation to ensure selection aligns with needs.
Suitable: Freeze-thaw resistant (50 cycles at -45°C without cracking), heat-resistant (stable at 75°C), low water absorption (≤0.05%), impermeable and moisture-proof, highly stain-resistant, acid rain-resistant, and resistant to salt and alkali corrosion. Suitable for global climates including polar, tropical, subtropical, and coastal regions. No concerns regarding climate or environmental impact on stone colour or texture; maintains excellent condition during long-term outdoor use.
No: With silica content exceeding 70% and a dense crystalline structure, no significant colour variation occurs after 30+ years of UV exposure. Accelerated ageing tests show ΔE<0.8 (far below the industry standard of 3.0). Long-term outdoor use prevents weathering and deformation. Sesame-like speckles naturally settle over time, enhancing the stone's substantial texture without compromising appearance.
Available: Free provision of Class A radioactivity test reports, third-party physical property test reports, Certificates of Origin, packing lists, and invoices. We assist clients with import customs clearance procedures, strictly adhering to customs regulations for import/export commodity classification to mitigate declaration risks. Particularly suited for high-end market clearance in RCEP member states, we also facilitate customs commodity code inquiries to ensure seamless clearance.
Significant advantages: wider variety, more distinctive patterns (highly recognisable natural sesame-like speckles), consistent quality with competitive pricing; mature supply chain enabling long-term stable supply, high precision digital processing, and flexible customisation; Logistics are streamlined via Fujian's coastal ports, enabling direct access to global core markets. It enjoys strong reputation and market presence in Europe, Australia, and Southeast Asia, complemented by comprehensive after-sales and bespoke services.
Resistant to contamination: G654 Sesame Grey exhibits extremely low water absorption (≤0.05%), featuring a dense structure and strong stain resistance. Simple protective treatments can further enhance its stain-repellent properties. Routine maintenance requires no complex procedures—regular wiping with clean water suffices. Should stains occur, neutral cleaners may be used, avoiding strong acids or alkalis. Long-term use maintains an excellent appearance, reducing subsequent maintenance costs.
