Sea Star Marble

About
Item Details
- Material Type:
- Marble
- Origin:
United States - 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, sculptures, fireplaces
- Additional Names:
- Sea's Star Marble, Star of the Sea Marble, Gray Sea Star Marble, Sea Star Grey Marble, Arctic Green Marble, in China stone market:海之星 (Hǎi zhī xīng), Sea Star Marble
- Finished Surface:
- Polished,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling
Testing
- Water Absorption:
- 0.15 – 0.25 % by weight
- Density:
- 2680 – 2720 Kg/m³
- Flexural Strength:
- 12 – 18 MPa
- Compressive Strength:
- 110 – 130 MPa
Description
Sea Star Marble is a luxurious natural stone quarried in United States of America, featuring a fine-grained dark silver-gray base accented with lighter streaks and khaki green shades. The stone exhibits dynamic and elegant flowing patterns, making it ideal for both modern and classical interior designs. Its combination of subtle tones and delicate veining provides a sophisticated visual appeal.
Texture & Pattern
- Texture: Fine-grained crystalline structure, smooth to the touch.
- Pattern: Flowing streaks of lighter gray interspersed with khaki green veins and flecks.
- Visual Effect: Creates natural movement and depth, offering a calm yet refined appearance.
- Surface Feel: Silky and dense when polished; soft matte under honed finish.
Physical & Mechanical Properties (Typical Test Results)
- Apparent Density : 2.68 – 2.72 g/cm³
- Water Absorption : 0.15 – 0.25 % by weight
- Compressive Strength : 110 – 130 MPa
- Flexural Strength : 12 – 18 MPa
- Abrasion Resistance : 15 – 18mm (Böhme)
- Mohs Hardness : 3 – 4 —
- Porosity : 0.3 – 0.5 %
Chemical Composition (% by Weight)
- CaCO₃ (Calcium Carbonate) : 94 – 97%
- MgCO₃ (Magnesium Carbonate) : 1 – 2%
- SiO₂ (Silica) : 0.5 – 1.2%
- Fe₂O₃ (Iron Oxide) : 0.2 – 0.4%
- Al₂O₃ (Alumina) : 0.1 – 0.3%
- Trace Elements : <0.2%
Mineralogical Composition (% by Weight)
- Calcite : 95 – 97%
- Quartz : 1 – 2%
- Serpentine / Mica Minerals : 0.5 – 1%
- Iron Oxides : <0.5%
Available Cutting Sizes
- Slabs (cm): 260–320 × 140–200
- Tiles / Cut-to-Size (cm): 30×30, 30×60, 60×60, 60×120, 80×80, or custom sizes
- Thickness: 2 cm, 3 cm (standard); custom thickness available
- In inches (approx.): Slabs: 102–126″ × 55–79″
- Tiles: 12″×12″, 12″×24″, 24″×24″, 24″×48″
Surface Finish Options
- Polished: High gloss finish enhancing color contrast and veining
- Honed: Smooth matte finish with subtle elegance
- Leathered / Brushed: Slightly textured, tactile surface
- Bush Hammered: Non-slip rugged finish for exterior applications
- Tumbled: Antique, rustic appearance
- Sawn Cut: Natural surface suitable for further processing
Usage Applications
- Flooring and wall cladding (interior and exterior)
- Countertops, kitchen islands, and vanity tops
- Staircases, risers, and thresholds
- Fireplace surrounds, feature walls, and columns
- Decorative architectural elements and mosaics
Maintenance Guidelines
Apply a penetrating stone sealer after installation to protect from stains and moisture. Clean with pH-neutral cleaners; avoid acidic or abrasive substances. For high-traffic areas, resealing every 12–18 months is recommended to maintain appearance.















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