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China G3702 Snowflake Blue Granite Manufacturers, Supplier
Product Description
Products Information
1. Origin and Quarry Sources
- Primary Production Area: Shandong Province, the sole core origin of Snowflake Grey granite. Formed from the Jiaodong Peninsula's mineral deposits, it possesses unique mineral composition and consistent quality. As Northern China's principal export base for blue-grey granite, it complements G654 (Fujian) and G3701 (Binzhou Green), forming a complementary north-south stone supply chain with differentiated colour palettes. This caters to overseas clients' procurement needs across diverse regions and aesthetic preferences. Leveraging the stone industry foundation of Lai Zhou, the ‘Stone Capital of China’, ensures superior quality and production capacity.
- Supply Advantages: Pure mineral composition with abundant reserves, specialising in premium mid-to-high-end materials. Annual production capacity meets overseas orders of 700,000 square metres, excelling in both slab processing and custom profiling to fulfil large-scale project orders and high-end bespoke commissions. High ore yield with no fissures or impurities, featuring dense crystalline structure and uniformly distributed snowflake patterns. Exceptionally suited for cutting, polishing, chamfering, and simple custom shaping, delivering finished products with superior flatness and consistent veining. Supply stability significantly surpasses that of comparable niche granite varieties.
- Logistical Convenience: Proximity to Qingdao, Yantai, and Rizhao ports enables cost-effective container shipping and bulk cargo arrangements directly to major ports across Europe, the Middle East, Japan, and South Korea. We assist with customs clearance procedures, strictly adhering to declaration requirements by accurately reporting product details and codes. This significantly shortens delivery cycles and ensures smooth customs clearance, particularly suited to export logistics via northern ports. Leveraging Laizhou's established stone logistics network further reduces transportation costs.
- Key Export Products: Core quarry G3702 boasts the purest hue and most uniform snowflake veining, primarily serving high-end landscaping, exterior wall cladding, and custom decorative applications. Zhaoyuan secondary quarry material offers superior value for money, suitable for large-scale municipal paving and standard decorative projects. Both meet international export stone quality standards, with export orders experiencing steady annual growth. Particularly prominent market share in European and American landscape design, Middle Eastern residential decoration, and Japanese/Korean high-end interior/exterior finishing markets. Plate exports rank among the highest for comparable blue-grey granites.
2. Appearance Characteristics
- Base Colour: A warm bluish-grey (grading from light to deep blue, with custom sorting available), featuring rich, uniform colouration with minimal variation and exceptional batch consistency. Distinct from the deep blue-black of Binzhou Green and the dark grey-black of G654, its blue-grey base exudes a minimalist, sophisticated elegance. Free from impurities or yellowing, it features snowflake-like white speckles, offering high visual distinctiveness and compatibility with diverse overseas design styles including modern, minimalist, and Chinese aesthetics.
- Texture: Densely compact with uniform crystallisation, its defining feature is evenly distributed white crystalline flecks (1-3mm diameter) resembling scattered snowflakes. These appear in balanced density—neither excessive nor jarring—blending naturally into the blue-grey base. It combines the steadiness of blue-grey stone with the vitality of white speckles, serving as a defining element for high-end landscaping and decorative projects. Instantly distinguishable from other dark or solid-coloured granite varieties, it is particularly favoured by overseas landscape designers.
- Comparison with G654 (Sesame Black)/G3701 (Binzhou Grey): Snowflake Grey (G3702) features a blue-grey base with uniform white snowflake patterns; G654 has a deep grey-black base with white sesame-like dots (more densely distributed, darker base); G3701 comprises deep blue-black with subtle blue-grey veining (no white dots). Snowflake Grey exhibits frost resistance comparable to Binzhou Grey, making it suitable for projects in northern cold regions. Its blue-grey snowflake pattern offers enhanced decorative appeal. Positioned between G654 and G3701 in terms of cost-effectiveness, it caters to the mid-to-high-end export decoration market. As a high-value alternative to imported blue-grey decorative stone, it is particularly favoured by overseas clients seeking distinctive visual appeal.
- Gloss & Finishes: Post-polishing gloss ≥88°, delivering a high-gloss finish. The translucent blue-grey base reveals distinct, three-dimensional snowflake patterns, making it suitable for premium indoor/outdoor decoration, countertops, and landscape cladding. Flamed/Lychee Finish presents a uniform matt blue-grey appearance with retained distinct snowflake patterns. Offers excellent slip resistance, stain resistance, and ease of cleaning, making it the preferred choice for outdoor landscapes and municipal paving. Both surface treatments accommodate diverse overseas applications, allowing flexible selection based on client design aesthetics.
3. Physical Properties
| Parameters | Typical Values | Engineering Value |
|---|---|---|
| Density | 2.70–2.76 g/cm³ | The structure is dense and compact, minimising deformation during transportation, hoisting, and dry hanging. It is suitable for large-format panels and conventional custom shaping, reducing overseas transport and installation losses. It is particularly well-suited for ultra-large panel landscape projects. |
| Water absorption rate | ≤0.15% | Exceptionally low water absorption, with outstanding freeze resistance, cold tolerance, seawater corrosion resistance, and stain resistance. Suitable for Europe and America's frigid regions and Southeast Asia's coastal areas, particularly ideal for northern ports, coastal defence landscapes, and premium outdoor decoration, meeting global multi-climate requirements. |
| Compressive strength | 210–230 MPa | Exceptional compressive strength enables use in premium landscaping, heavy-duty municipal plazas, airport pavements, and port terminal surfacing. It meets demands for large-scale overseas landscape and municipal projects, with load-bearing capacity far exceeding standard decorative granite. |
| Flexural strength | 20–26 MPa | High safety factor for dry-hanging systems, resistant to fracture and detachment. Suitable for high-rise building facades and large-span landscape paving, compliant with international building safety standards, alleviating overseas clients' construction safety concerns. |
| Mohs hardness | 6.5–7 | Highly wear-resistant and scratch-resistant, it suits high-traffic shopping centres, luxury residential flooring, premium countertops, and landscape cladding. Long-term use shows no wear marks, with snowflake patterns retaining their colour, reducing overseas clients' maintenance costs and extending product lifespan. |
| Acid/alkali & Weather resistance | Excellent (ASTM C615, CE EN 1341, SNI standards) | Outdoor durability ensures 40 years of colour retention, resistance to weathering and degradation. Withstands intense Middle Eastern UV radiation, Southeast Asian acid rain and severe European/American cold climates, adapting to diverse global environments. Snowflake patterns remain distinctly visible over time, enhancing overseas competitiveness while reducing long-term maintenance costs for clients. |
| Radioactivity | Class A stone (non-radioactive) | Suitable for all locations (interior/children's areas/food zones/premium buildings). |
Core Strengths
National Standard Code G3702
Exclusive national standard designation with high international recognition (GB/T 17670). Its distinctive ‘snowflake pattern on a blue base’ stands apart from standard black stone, catering to premium architectural landscapes across Europe, America, the Middle East, Japan, and Korea.
Stable Color & Batch Consistency
Colour variation within the same quarry batch is ≤ Grade 2 with uniform snowflake density. Complimentary sample sealing confirmation ensures slabs are rigorously screened to eliminate imperfections and fissures, guaranteeing dispute-free bulk international shipments.
Superior Workability
Easily cut, chamfered, and polished for oversized panels and complex architectural profiles. Precise fabrication limits: thickness tolerance ±0.4mm, diagonal tolerance ±0.9mm, and flatness tolerance ±0.3mm to satisfy demanding engineering projects.
High Cost-Effectiveness
Priced 35%-55% lower than Indian Blue, Brazilian Grey-Blue, and South African Snowflake Blue; and 15%-25% lower than Binzhou Blue (G3701). Leveraging Laizhou's processing hub and nearby ports ensures competitive export freight rates and prompt lead times.
Extreme Cold & Salt Resistance
Withstands temperatures down to -38°C without frost-cracking, proving far superior to southern Chinese grey granites. Exceptional seawater corrosion resistance makes it equally suitable for coastal installations in Southeast Asia and frigid European/North American climates.
Surface Treatment
1. Polished Surface (POL)
High-gloss finish with a translucent blue-grey base, showcasing distinct three-dimensional snowflake patterns. Exceptionally decorative, ideal for premium interior walls/floors, hotel lobbies, luxury countertops, lift lobbies, and landscape cladding. The preferred surface treatment for high-end export products.
2. Flamed Finish (FLM)
A coarse, uniform matt surface offering excellent slip resistance. Snowflake patterns remain clearly visible. Resistant to freezing temperatures, cold weather, and seawater corrosion. Designed for high-traffic, heavy-duty outdoor municipal squares, garden pathways, and port pavements.
3. Bush-hammered (BHM)
Features uniform dotted texture combining slip resistance with decorative appeal. Its blue-grey base complemented by dotted patterns and snowflake-like white specks elevates architectural aesthetics. Ideal for building facade dry-hanging, landscape steps, and monument bases.
4. Additional Finishes
Honed, Sandblasted, Natural, Brushed, Antiqued. Suitable for bespoke architectural styles (e.g., heritage architecture, landscape accents, and mid-range gravestones), satisfying diverse overseas architectural specifications.
Standard Specifications
1. Large Slabs
- Standard dimensions: 2400×1200mm, 2600×1300mm, 2800×1400mm; customisable oversized slabs exceeding 3000mm.
- Thickness: 18mm, 20mm, 30mm, 50mm (project standards); 16mm (thin slabs); 80mm–150mm (special architectural shapes and sculptures).
2. Project Tiles
- Common sizes: 600×600mm, 800×800mm, 300×600mm, 1000×500mm.
- Thickness: 15mm (interior), 20mm (exterior), 30mm (heavy-duty flooring and severe cold zones).
3. Custom Shapes
- Kerbstones: 1000×150×300mm standard or custom dimensions for municipal engineering.
- Architectural items: Steps, window sills, columns, curved panels, tactile paving stones, memorials, water features, bridge parapets, and port slabs.
Application Scenarios
- Premium Landscape and Municipal Engineering: High-end garden landscapes, municipal squares, park water features, revetments, steps, and stepping stones across Europe, America, and the Middle East. High frost and salt resistance creates sustainable outdoor landscapes.
- Architectural Facade Dry-Hanging: Premium office towers, five-star hotels, commercial complexes, and luxury residential developments. Resists stains, atmospheric degradation, and severe freeze-thaw cycles.
- Paving Applications: Airports, transit stations, ports, large plazas, and luxury villa driveways in frigid and coastal regions where high compressive strength and slip resistance are mandatory.
- Interior Finishing: Cladding in hotel lobbies, high-end residential living rooms, kitchen/bathroom countertops, and lift surrounds with balanced three-dimensional snowflake patterns.
- Mid-range Monumental and Decorative Components: Gravestones, memorial structures, base pedestals, and decorative mouldings for Japan, South Korea, and the Middle East.
Foreign Trade Codes and Customs Declaration
National Standard Code: G3702 (Core international engineering tender identification code)
HS Codes for Export:
• Rough blocks (uncut): 25161100.00
• Rectangular slabs/blocks: 25161200.00
• Polished finished slabs: 68022390
• Custom-shaped/carved items (tombstones, sculptures, etc.): 68029190
Compliance Notice: Full adherence to international export customs standards. Shipments include Category A Radioactivity Test Reports, Certificate of Origin, Packing Lists, Commercial Invoices, and Third-Party Quality Inspection Reports. Specialized destination-market testing reports and outward processing document support are provided upon request.
Compared with Similar Granite
| Comparison Item | G3702 (Snowflake Blue) | G654 (Sesame Black) | G3701 (Binzhou Blue) |
|---|---|---|---|
| Colour Tone | Blue-grey with uniform snowflake-like white speckles, offering a dynamic yet minimalist aesthetic | Deep grey-black base with white sesame-like speckles, featuring a rather plain texture | Deep blue-black with subtle blue-grey veining, warm and substantial |
| Hardness & Abrasion | High (Grade 6.5–7), with outstanding frost resistance and cold tolerance | High (Grade 6.5–7), suitable for standard projects | Exceptionally high grade (7–7.5), premier choice for high-end applications |
| Stain Resistance | Excellent stain resistance; routine cleaning suffices, snowflake patterns conceal marks effectively | Good stain resistance, ideal for construction settings and easy to clean | Exceptionally stain-resistant, requiring virtually no special maintenance |
| Price Level | Moderate (Preferred for mid-to-high-end decoration, offering exceptional value for money) | Moderate (Top value-for-money choice for projects, no premium for irregular shapes) | Moderately high pricing (reflecting premium quality, transparent pricing) |
| Export Markets | Europe & America (landscaping), Middle East (residential), Japan & Korea (luxury finishes) | Globally applicable, particularly for standard municipal works in the Middle East | European and North American cold climates |
| Core Advantages | Distinctive snowflake texture, strong decorative appeal, high value for money | High cost-effectiveness, suitable for large-scale bulk installations | Exceptional structural density and deep, uniform colour tone |
Procurement Notes
- 1. Colour Variation and Grain Control: Within the same quarry batch, colour variation is ≤ Grade 2. 3–5 free production samples are provided for client sealing to guarantee consistency in bulk orders.
- 2. Packaging Standards: Reinforced fumigated wooden pallets, moisture-proof film, impact-resistant bubble wrap, and steel strapping compliant with ocean transit standards.
- 3. Delivery Lead Times: Standard orders ship within 15–20 days; oversized panels and custom architectural components take 25–35 days. Partial shipments and flexible schedules supported.
- 4. Quality Standards: Certified to GB/T 18601, ASTM C615, and CE EN 1341 international standards, accompanied by third-party inspection reports.
- 5. Minimum Order Quantity (MOQ): Large slabs start from 50m²; project tiles start from 100m². Flexible arrangements for custom carvings and architectural elements.
Frequently Asked Questions (FAQ)
What distinguishes G3702 Snowflake Grey from G654 and G3701 granites?
G3702 Snowflake Grey features a warm blue-grey background with uniformly scattered white crystalline speckles (1–3mm), offering high visual distinctiveness. Compared to G654 (dark grey-black sesame pattern) and G3701 (deep blue-black veining), G3702 offers a refined modern aesthetic at a highly competitive mid-to-high-end price point.
How does G3702 granite perform in harsh freezing or marine climates?
With an exceptionally low water absorption rate (≤0.15%) and high flexural/compressive strength, Snowflake Grey withstands temperatures as low as -38°C without frost-cracking. It also provides outstanding resistance against seawater corrosion, salt spray, and UV fading, making it ideal for northern European, American, and coastal projects.
What are the recommended surface treatments for outdoor paving and facades?
For outdoor paving, municipal squares, and walkways, the Flamed (FLM) and Bush-hammered (BHM) finishes are recommended due to their high slip resistance and matte appearance. For interior cladding, luxury flooring, and facade panels, the Polished (POL) surface brings out the rich, three-dimensional depth of the snowflake crystallisation.
What international standards and certificates does this granite comply with?
Snowflake Grey granite complies with ASTM C615 (Standard Specification for Granite Dimension Stone) and CE EN 1341 European standards. It is categorized as Class A non-radioactive dimension stone, making it safe for both exterior engineering and unrestricted interior living or food-grade spaces.
What are the standard export lead times and Minimum Order Quantities (MOQ)?
The standard MOQ is 50m² for large slabs and 100m² for cut-to-size project tiles, with flexible batch options for custom architectural profiles. Standard export orders are dispatched within 15–20 days, while custom-shaped and oversized elements typically require 25–35 days via direct shipment from northern Chinese ports (Qingdao, Yantai).
What export documentation and HS codes apply to G3702 shipments?
Primary HS codes include 25161200.00 for rectangular slabs/blocks, 68022390 for polished finished slabs, and 68029190 for carved or shaped items. Full export documentation packages comprise the Commercial Invoice, Packing List, Certificate of Origin, Category A Radioactivity Report, and third-party inspection reports.
