Space Gray Hemp Granite
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About
Material Type: Granite
Origin:
China
China
Priamry Color(s): Grey
Accent Color(s): Grey,Silver
Recommended Usage:Kitchen and bathroom countertops, monuments, building stone, ornamental stone, stairs, interior, exterior wall and floor applications, mosaic, waterjet pattern, wall panels, table tops, window sills, balustrades, columns, wall and pool copings, pool pavers, sculptures, fireplaces, pavers, cobbles, curbstone
Additional Names:Cosmic Gray Linen Granite,Cosmic Gray Granite,Cosmic Grey Granite,Galactic Hemp Gray Granite,Galactic Gray Granite,Astro Hemp Granite,Astro Grey Granite,In China Stone Market:太空灰麻(Tàikōng Huī Má)
Finished Surface:Polished,Flamed,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling
Testing
Water Absorption:0.20 – 0.40% by weight
Density:2630 – 2750 Kg/m³
Flexural Strength:12 – 18 MPa
Compressive Strength:130 – 160 MPa
Description
Type: Granite
Quarry Origin: China
Stone Category: Medium-grain grey granite
Common Trade Name: Space Gray Hemp Granite
Color Family: Sesame Grey / Silver Grey
Color, Texture & Pattern
- Base Color : Silver grey to medium sesame grey
- Grain : Medium grain texture with consistent distribution
- Pattern : Dispersed black and white mineral grains forming a peppered look
- Visual Effect : Neutral and modern, suitable for large surface applications
- Texture : Uniform, natural grain; slightly rough to the touch in flamed/sandblasted finishes
Physical & Mechanical Properties
- Density : 2.63 – 2.75 g/cm³
- Water Absorption : 0.20 – 0.40% by weight
- Porosity : 0.25 – 0.60%
- Compressive Strength : 130 – 160 MPa
- Flexural Strength : 12 – 18 MPa
- Abrasion Resistance : Excellent (low wear rate)
- Mohs Hardness : 6 – 7
- Slip Resistance (R-value) : R9 (Polished), R11–R13 (Flamed, Bush-Hammered)
Chemical & Mineral Composition (% by weight)
- Quartz (SiO2) : 25% – 35%
- Feldspar (Alkali + Plagioclase) : 50% – 60%
- Mica (Biotite/Muscovite) : 5% – 10%
- Iron Oxide (Fe2O3) : 1% – 2%
- Calcium & Magnesium Oxides : ≤ 1%
- Other trace minerals : < 1% (e.g., amphiboles)
Typical Applications
- Exterior paving & cladding
- Interior flooring & staircases
- Monuments & memorials
- Urban landscape elements
- Kitchen countertops & bathroom vanity tops
- Window sills & thresholds
- Industrial and commercial flooring
Maintenance
- Sealing : Not always necessary, but optional for polished areas
- Daily Cleaning : Mild pH-neutral soap and waterHeavy-duty
- Cleaning : Use granite-specific cleaners
- Stain Removal : Requires poultice for oil-based stains
- Weathering Resistance : Excellent for freeze-thaw cycles
Standard Cutting Sizes (cm)
- Tiles : 30×30, 60×30, 60×60, 60×90, 80×40, custom cuts
- Slabs : 240–320 cm x 120–200 cm (2 cm / 3 cm thick)
- Cut-to-sizeStairs, countertops, skirting, window sills
Available Surface Finish Options
- Polished : Glossy, enhances natural grain and color
- Honed : Smooth matte, subtle elegance
- Flamed : Rough, anti-slip texture for exteriors
- Bush-Hammered : Pitted, rugged finish for paving or facades
- Sandblasted : Uniform fine-textured finish, slightly lighter color
- Leathered : Soft, tactile matte finish, less slippery than polished
- Water-Jet/Brushed : Optional finishes on request
Product & Prices
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