Sichuan Grey Sandstone
China
(Sichuan province)
Sichuan Grey Sandstone is a premium natural stone known for its uniform fine-grained texture and deep charcoal-to-dark gray coloration. Quarried from the Sichuan Province in southwest China, this sandstone exudes a contemporary, minimalist appeal, making it a favorite among architects and designers for both interior and exterior projects.
Its consistent grain, high compressive strength, and low porosity make it not only beautiful but also durable and low maintenance. It maintains its structural integrity even in harsh weather conditions, making it ideal for high-traffic areas, cladding, and landscaping applications.
Texture & Pattern:
- Grain: Fine and consistent
- Surface Texture: Smooth in honed or polished finish; slip-resistant in sandblasted, flamed, or bush-hammered finishes
- Color: Uniform dark grey to charcoal with occasional light mineral specks
- Pattern: Subtle layering typical of sedimentary stone; mostly homogenous appearance with minimal veining
Technical Specifications:
- Water Absorption ... 0.17–0.22% by weight
- Density ... 2.62–2.68 g/cm³ (2620–2680 kg/m³)
- Compressive Strength ... 110–135 MPa
- Flexural Strength ... 14–18 MPa
- Hardness ... 6–7 Mohs
- Porosity ... Low to medium (~5–8%)
- Slip Resistance ... R11–R13 (depending on surface finish)
Chemical & Mineral Composition (% by weight):
- Silicon Dioxide (SiO2) ... 65–75%
- Aluminum Oxide (Al2O3) ... 10–15%
- Iron Oxide (Fe2O3) ... 1.5–3.5%
- Calcium Oxide (CaO) ... <1%
- Magnesium Oxide (MgO) ... <1%
- Minerals ... Quartz, feldspar, mica, clay minerals
Surface Finish Options (2cm / 3cm thickness standard):
- Honed – Smooth matte finish, indoor floors and walls
- Polished – Reflective surface (rare for sandstone)
- Sandblasted – Fine anti-slip texture for exteriors
- Bush-Hammered – Rough, high-grip surface for pavements
- Flamed – Rough and weathered surface, ideal for wet zones
- Natural Split (Cleft) – Rustic, hand-split traditional look
- Brushed / Leathered – Textured but soft to touch
Applications:
- Exterior cladding & facades
- Walkways, pool decks & garden paving
- Interior flooring & feature walls
- Retaining walls and planters
- Steps, coping stones, and wall caps
- Public spaces & urban design projects
Maintenance:
Regular sweeping and mild water cleaning
Optional sealing to reduce moisture penetration and staining
Avoid acidic cleaners or harsh abrasives
Excellent performance in freeze-thaw cycles after sealing
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China
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XIAMEN REALTOP IMP&EXP CO.,LTD.
China
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China
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China
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China
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China
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China
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XIAMEN DAWEI IMPORT & EXPORT CO.,LTD.
China
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China
Verified Supplier is for prove company authenticity,including business license,trade license and effective office space,to enhance buyers' trust to suppliers and their products, reducing communication costs.
Contact Supplier
The request includes: 1. surface finished, size 2. quantity required
