Galaxy Oro Granite

Galaxy Oro Granite is a dramatic natural granite quarried in Brazil, distinguished by a deep charcoal-to-black background enriched with dark olive-green undertones. Its combination of dense golden speckling and strong diagonal golden-brown bands gives the stone a luxurious, starry appearance with substantial visual movement.

Base Color

The background ranges from:

• Deep charcoal
• Black
• Dark olive-green
• Brownish-black undertones

The overall appearance is dark, rich and sophisticated, providing a strong contrast against the warmer metallic-looking mineral grains.

Texture

• Medium- to coarse-grained crystalline texture
• Dense, compact igneous structure
• Highly crystalline surface
• Pronounced granular mineral distribution
• Occasional lighter mineral fractures
• Capable of achieving a deep, reflective polish
• Natural variation between blocks and slabs

Pattern & Appearance

Galaxy Oro Granite combines dense starry speckling with bold linear elements. The dark background is heavily populated with tiny golden-bronze, amber and brownish mineral grains, creating a star-filled visual effect. Across this granular field, distinctive parallel golden-brown and amber bands run diagonally through the stone, creating strong directional movement. Faint, irregular lighter-colored fractures or mineral-filled features may appear in localized areas, including toward slab edges. The combination of dark background, golden mineralization and diagonal banding makes this granite particularly suitable for feature installations and bookmatched slabs.

Typical Technical Properties

Representative values for comparable Brazilian dark/golden granites; actual quarry test results may vary. 

• Apparent Density: 2,700–2,800 kg/m³
• Water Absorption: 0.10–0.40%
• Open Porosity: 0.2–1.0%
• Compressive Strength, Dry: 190–230 MPa
• Compressive Strength, Wet: 170–200 MPa
• Flexural Strength, Dry: 14–18 MPa
• Flexural Strength, Wet: 12–15 MPa
• Mohs Hardness: 6–7
• Abrasion Resistance: High

Chemical Composition - ComponentApprox. % by Weight

• SiO₂: 65–73%
• Al₂O₃: 13–17%
• Fe₂O₃ + FeO: 2–6%
• CaO: 1–4%
• Na₂O: 3–5%
• K₂O: 3–6%
• MgO: 0.5–3%
• TiO₂: 0.2–1.2%
• Other oxides: <2%

Mineral Composition

• Quartz20–30%
• Plagioclase Feldspar30–40%
• Potassium Feldspar15–25%
• Biotite5–12%
• Hornblende / Amphibole3–8%
• Pyroxene1–5%
• Other Accessory Minerals<3%

The golden and bronze coloration is generally associated with combinations of potassium feldspar, biotite and iron-bearing minerals, while the darker background is influenced by mafic minerals and the overall mineral composition of the granite.

Recommended Uses

Galaxy Oro Granite is suitable for demanding interior and exterior applications, including:

Kitchen countertops, Island tops, Vanity tops, Reception desks, Bar counters, Dining and conference tables, Feature walls, Interior wall cladding, Fireplace surrounds, Flooring, Staircases, Exterior façades, Exterior paving, Columns, Hotel and luxury residential interiors, Commercial interiors, Monumental applications, Architectural feature panels.

The pronounced diagonal pattern makes it especially attractive for large feature walls, countertops and bookmatched installations.

Maintenance

Galaxy Oro Granite is a relatively low-maintenance and durable natural stone.

• Clean regularly with a pH-neutral stone cleaner.
• Avoid strong acids and harsh alkaline chemicals.
• Remove oils and strongly colored liquids promptly.
• Use a suitable penetrating sealer where required.
• Reseal periodically according to the application and traffic.
• Avoid abrasive cleaning powders on polished surfaces.
• Use cutting boards and protective mats on countertops.
• Do not place extremely hot cookware directly on the surface.
• Inspect slabs for natural fissures before fabrication.

Exterior installations should incorporate proper drainage and professional fixing systems.

Fabrication Considerations

Because Galaxy Oro has strong directional bands, slab orientation is important. Fabricators should review complete slabs before cutting to determine the most attractive orientation and optimize vein/band continuity.

For large walls or islands, bookmatching or vein-matching can create a particularly dramatic continuous pattern.

Note: The chemical, mineralogical and mechanical values above are representative ranges for comparable Brazilian dark/golden granites and should not be treated as certified values for a specific quarry. For architectural specifications, engineering approval or procurement, quarry-specific laboratory test results should be obtained from the supplier.