Black Galaxy Granite

Physical 6x6" Sample Ready

Renowned worldwide as the premier dark architectural stone. Inky obsidian black gabbro dense with shimmering golden and copper bronzite crystals that catch natural light with celestial depth. Specified for corporate headquarters, luxury residential countertops, and high-traffic hotel lobbies across North America.

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Swatch Quantity (6x6" full cut):

Complimentary overnight air dispatch to US architectural firms

Core Dimensions & Tolerances

Available Sizes: Jumbo Gangsaw Slabs (120x75"), 24x48", 24x24"
Slab Thickness: 2cm (3/4") / 3cm (1-1/4") / 20mm
Surface Finishes: Mirror Polished, Leathered, Honed
Recommended Applications: Countertop / Slab, Flooring, Wall Cladding, Facade
Quarry Origin: Chimakurthy, Andhra Pradesh, India

Architectural Technical Data

Complete Material Specifications & ASTM Standards

Available Sizes: Jumbo Gangsaw Slabs (120x75"), 24x48", 24x24"
Slab Thickness: 2cm (3/4") / 3cm (1-1/4") / 20mm
Surface Finishes: Mirror Polished, Leathered, Honed
Recommended Applications: Countertop / Slab, Flooring, Wall Cladding, Facade
Quarry Origin: Chimakurthy, Andhra Pradesh, India
Mineral / Petrographic Type: Natural Granite
Apparent Density: 2,980 kg/m³
Water Absorption (ASTM C97): 0.08% (ASTM C97)
Compressive Strength (ASTM C170): 235 MPa (ASTM C170)
Flexural Strength (ASTM C880): 22.4 MPa (ASTM C880)
Mohs Mineral Hardness: 6.5 / 10
Export Packaging: ISPM-15 heat-treated wooden A-frame bundles (6–7 slabs per bundle)
Lead Time & Port Staging: 3–4 weeks FOB Krishnapatnam Port