Etna Black Granite

About
Item Details
- Material Type:
- Granite
- Origin:
Brazil - Recommended Usage:
- kitchen and bathroom countertop, wash basins, building stone, ornamental stone, stairs, interior wall and floor applications, mosaic, water-jet pattern, wall panels, table tops, balustrades, columns, fireplaces, luxury furniture
- Additional Names:
- Black Etna Granite, Granito Preto Etna
- Finished Surface:
- Polished,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Chiseled,Pickling
Testing
- Water Absorption:
- 0.40 %
- Density:
- 2750 kg/m³
- Flexural Strength:
- 15 – 19 MPa
- Compressive Strength:
- 180 – 210 MPa
Description
Etna Black Granite is a dramatic and visually striking natural stone quarried in Brazil, characterized by a deep, rich black background enriched with subtle gold and white wavy veining. This exotic granite reflects raw geological strength and natural artistry, formed through complex mineral crystallization processes involving feldspars, biotite, muscovite, and quartz. One of its distinctive features is its ability to reveal depth and luminosity when backlit, where hidden translucent layers become visible, transforming the stone into a glowing architectural surface.
This combination of durability, mineral complexity, and aesthetic depth makes Etna Black Granite highly suitable for luxury interior and exterior applications requiring both performance and visual impact.
Color, Texture & Pattern
Etna Black Granite features a deep charcoal to jet-black base with medium to coarse crystalline texture. The surface is enriched with flowing, wave-like veins in soft gold, white, and light gray tones. These mineral veins are irregular yet balanced, creating a dynamic movement across the slab reminiscent of natural geological flow structures.
The stone’s mineral composition allows subtle translucency in specific sections, making it particularly suitable for backlit applications where depth and internal structure become visually enhanced.
Petrographic Analysis (% by Weight)
- Plagioclase: 40%
- Quartz: 25%
- Biotite: 20%
- Muscovite: 12%
- Opaque Minerals: 3%
- Accessory Minerals (Zircon, Apatite, Titanite, Carbonate): Trace / Rare
Chemical Composition (% by Weight)
- SiO₂ (Silica): 50–60%
- Al₂O₃ (Alumina): 14–18%
- FeO / Fe₂O₃: 5–10%
- K₂O + Na₂O: 4–7%
- CaO: 4–8%
- MgO: 2–5%
- Trace Elements: <2%
Physical & Mechanical Properties
- Apparent Density: 2,750 kg/m³
- Water Absorption: 0.40%
- Compressive Strength: 180 – 210 MPa
- Flexural Strength: 15 – 19 MPa
- Abrasion Resistance: High
- Impact Resistance: High
- Frost Resistance: Good to Excellent
- Weather Resistance: Excellent
- Mohs Hardness: 6 – 7
The mineral-rich composition provides strong mechanical resistance while maintaining a refined decorative appearance.
Surface Finish Options
Etna Black Granite is available in multiple finishes:
- Polished (high gloss, enhances depth and veining)
- Honed (matte smooth finish)
- Leathered (soft textured surface)
- Flamed (non-slip exterior finish)
- Brushed
- Sandblasted
- Bush-hammered
- Tumbled
- Waterjet-cut decorative patterns
- Machine-cut precision finishes
Applications
Interior Use
- Luxury countertops
- Feature walls
- Backlit panels
- Reception desks
- Flooring
- Fireplace surrounds
- Staircases
Exterior Use
- Building façades
- Cladding systems
- Monumental architecture
- Landscaping features
- Public and commercial spaces
Maintenance
- Clean with pH-neutral stone cleaners
- Avoid acidic or abrasive chemicals
- Seal periodically depending on application
- Wipe spills promptly
- Use protective pads in interior applications
- Ensure proper drainage in exterior installations
Key Advantages
- Deep black granite with elegant gold and white veining
- Unique backlighting capability revealing internal structure
- High durability and mechanical strength
- Suitable for luxury architectural applications
- Natural variation with consistent base tone
- Excellent polish retention
- Versatile for both interior and exterior use
Etna Black Granite combines geological strength with artistic natural expression, making it a premium choice for architects and designers seeking dramatic visual impact and long-lasting performance in high-end projects.









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