Sunny Gray Marble

About
Item Details
- Material Type:
- Marble
- Origin:
China - Recommended Usage:
- Kitchen and bathroom countertops, wash basins, building stone, ornamental stone, stairs, interior, exterior wall and floor applications, mosaic, waterjet pattern, wall panels, table tops, balustrades, columns, wall and pool copings, pool pavers, fireplaces, window sills
- Additional Names:
- Sunny Grey Marble, in China stone market:天际灰(Tiān Jì Huī), Sunny Gray Marble
- Finished Surface:
- Polished,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Combed,Leathered,Water Jet,Chiseled,Pickling
Testing
- Water Absorption:
- 0.15–0.30 %
- Density:
- 2650–2720 kg/m³
- Flexural Strength:
- 12–18 MPa
- Compressive Strength:
- 85–110 MPa
Description
Sunny Gray Marble features a soft, light gray base color with subtle tonal variations. It is interspersed with delicate darker gray to brownish veining, forming a natural, flowing, organic pattern. The texture is fine-grained and smooth, typical of high-quality calcitic marble. When polished, it presents a refined, elegant surface with gentle depth; honed or brushed finishes create a softer, more contemporary appearance.
Pattern: The stone displays subtle, linear to slightly wavy veining, evenly distributed across the slab. The pattern is calm and balanced, making it suitable for large continuous applications without overwhelming the design.
Technical Specifications
- Compressive Strength ASTM C170 / EN 1926: 85–110 MPa
- Flexural Strength ASTM C99 / EN 12372: 12–18 MPa
- Density / Bulk Density ASTM C97 / EN 1936: 2,650–2,720 kg/m³
- Water Absorption ASTM C97 / EN 13755: 0.15–0.30 %
- Abrasion Resistance ASTM C241: Moderate
- Mohs Hardness: 3–4
Chemical Composition (% by weight)
- Calcium Carbonate (CaCO₃): 94–97%
- Magnesium Carbonate (MgCO₃): 1–3%
- Silica (SiO₂): 1–2%
- Iron Oxide & Trace Minerals: <1%
Mineralogical Composition (% by weight)
- Calcite: 90–95%
- Dolomite: 2–5%
- Quartz: 1–3%
- Accessory Minerals: <2%
Usage & Applications
Sunny Gray Marble is suitable for:
- Interior flooring
- Wall cladding
- Bathroom vanities
- Countertops (light-duty use)
- Staircases
- Decorative panels
- Hotel and commercial lobby spaces
- Its neutral tone makes it ideal for modern, minimalist, and contemporary architectural designs.
Maintenance
Clean regularly with pH-neutral stone cleaner. Avoid acidic or abrasive products. Periodic sealing is recommended to prevent staining. Use protective pads under heavy furniture.









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