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Etna Black Granite

Etna Black GraniteEtna Black Granite
Etna Black Granite

Granite

Brazil

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.

FAQ

If lemonade spills on a Etna Black Granite kitchen countertop, will it damage the surface?

Etna Black Granite is a durable and dense natural stone, which makes it relatively resistant to stains and damage. However, it is still important to clean spills promptly. Lemonade contains citric acid, and acidic substances can potentially etch or dull the surface of granite if left in contact for an extended period. To prevent any potential damage, its best to wipe up spills immediately with a soft, damp cloth and then dry the area. Additionally, ensuring the granite is properly sealed can help protect it from staining and etching. Regular maintenance and sealing every few years, depending on use and wear, are recommended to keep your granite countertop in good condition.

Can I use bleach when cleaning a Etna Black Granite kitchen countertop?

Using bleach on Etna Black Granite or any natural stone countertop is not recommended. Bleach is a harsh chemical that can damage the protective sealant on the granite, leading to potential staining, discoloration, or degradation of the stone over time. Instead, its best to use a mild dish soap mixed with warm water for regular cleaning. You can also use a cleaner specifically designed for granite and natural stone surfaces. Always ensure that the countertop is properly sealed, and promptly wipe up any spills to protect the granite.

My Etna Black Granite kitchen countertop edge is broken. How can I glue it back, and will it look like before?

Repairing a broken edge on a granite countertop can be a challenging task, but it is possible to fix it with attention to detail and the right materials. Heres a step-by-step guide: 1. **Clean the Area**: Thoroughly clean the broken edge and the detached piece with a mild detergent and water to remove any dirt, grease, or debris. Allow it to dry completely. 2. **Choose the Right Adhesive**: Use an epoxy adhesive specifically designed for stone repair. Epoxy provides a strong bond and fills gaps effectively. 3. **Prepare the Epoxy**: Follow the manufacturers instructions to mix the epoxy, which usually involves combining a resin and a hardener. 4. **Apply the Epoxy**: Carefully apply a thin layer of epoxy to both the broken edge of the countertop and the detached piece. Use a small brush or a stick for precision. 5. **Reattach the Piece**: Carefully align the broken piece with the countertop edge, ensuring it fits snugly. Press it firmly into place. 6. **Secure With Clamps**: If possible, use clamps to hold the piece in place while the epoxy cures. Use something soft, like a cloth, between the clamp and the granite to prevent damage. 7. **Clean Excess Epoxy**: Wipe away any excess epoxy that might seep out from the seam using a cloth dampened with acetone. Do this before the epoxy sets. 8. **Allow to Cure**: Let the epoxy cure according to the manufacturers instructions, which might take several hours to a full day. 9. **Polish (Optional)**: Once the epoxy is fully cured, consider polishing the area to match the surrounding surface. You may use a fine-grit polishing pad or hire a professional for a more seamless finish. **Will it Look Like Before?** - **Visibility of Repair**: Depending on the break and your skill level, the repair may still be slightly visible. The epoxy might not perfectly match the color and texture of your granite. - **Professional Help**: For best results, especially if the break is in a visible area, consider hiring a professional. They can use tools and techniques to achieve a more seamless repair. Granite repairs can often be disguised fairly well, but they might not be completely invisible. The skill in matching the color and finish plays a significant role in the repairs final appearance.

Is 18mm thick Etna Black Granite tiles durable enough for use as outdoor terrace pavers?

Etna Black Granite tiles with a thickness of 18mm can be suitable for use as outdoor terrace pavers, but several factors need to be considered to ensure their durability and performance in this application: 1. **Strength and Density:** Granite is a hard and durable natural stone, making it generally suitable for outdoor use. Its density and compressive strength can handle foot traffic and typical outdoor environmental conditions. 2. **Thickness:** While 18mm is relatively thick for a tile, outdoor pavers often range from 20mm to 30mm or more to provide additional strength and resistance to cracking under pressure. For areas with heavy traffic or if you anticipate the movement of heavy objects, thicker tiles may be preferable. 3. **Surface Finish:** The finish of the granite can affect its slip resistance. For outdoor use, a flamed or bush-hammered finish is often recommended to provide a textured surface that enhances grip, especially when wet. 4. **Installation:** Proper installation is crucial for durability. This includes a well-prepared substrate, appropriate adhesive or mortar, and adequate grouting to prevent water infiltration. 5. **Weather Conditions:** Consideration of your local climate is important. Granite is generally resistant to weathering, but in regions with freeze-thaw cycles, proper installation to prevent water ingress is essential to avoid cracking. 6. **Maintenance:** Regular maintenance, including cleaning and sealing (if necessary), will help extend the lifespan of the granite tiles and maintain their appearance. If the installation is done correctly and the tiles are used under conditions suitable for their thickness and finish, 18mm Etna Black Granite tiles can be a durable choice for outdoor terrace pavers. However, consulting with a professional installer familiar with your local conditions and the specific product can provide additional assurance.

If I cut meat directly on my Etna Black Granite kitchen countertop, will it damage the surface?

Cutting meat directly on your Etna Black Granite kitchen countertop is not recommended. Granite is a durable and hard surface, but it can still be damaged by direct cutting. Here are several reasons why you should avoid doing so: 1. **Scratches**: Granite is resistant to scratching, but it is not scratch-proof. Using sharp knives directly on the surface could risk scratching or dulling the finish over time. 2. **Sealant Damage**: Granite countertops are typically sealed to prevent staining and damage. Cutting directly on the surface could compromise this seal, making your countertop more susceptible to stains and damage from spills and moisture. 3. **Knife Damage**: Cutting on a hard surface like granite can also dull and damage your knives, reducing their lifespan and effectiveness. 4. **Bacteria**: Using a cutting board instead of the countertop directly can also be more hygienic. Cutting boards are easier to clean and sanitize, helping to prevent cross-contamination. To protect both your countertop and your kitchen tools, it’s a good idea to use a cutting board whenever you’re preparing food.

How can I remove rust stains from a Etna Black Granite kitchen countertop?

Removing rust stains from a granite countertop, such as Etna Black Granite, requires careful handling to avoid damaging the stone. Here’s a step-by-step guide to help you remove rust stains effectively: 1. **Safety First**: Before you start, ensure you are using gloves and safety glasses to protect yourself from any harsh chemicals. 2. **Test in an Inconspicuous Area**: Start by testing any cleaning solution or method in a small, hidden area to ensure it doesn’t damage the granite. 3. **Basic Cleaning**: - Clean the surface with warm water and mild dish soap. Use a soft cloth or sponge to gently scrub the area. This step is to remove any surface dirt and debris that might interfere with the stain removal process. 4. **Make a Poultice**: - **Materials Needed**: Baking soda, water, and hydrogen peroxide (3% concentration). - **Mixing**: Combine the baking soda with a small amount of water and hydrogen peroxide to form a thick paste. The consistency should be like peanut butter. - **Application**: Apply the paste generously over the rust stain and cover it with plastic wrap. Tape down the edges to keep the poultice in place. - **Waiting Period**: Let the poultice sit for 24-48 hours. This allows the baking soda and hydrogen peroxide to draw out the stain. 5. **Remove the Poultice**: - After the waiting period, remove the plastic wrap and gently scrape off the dried poultice using a soft plastic scraper or a clean cloth. Avoid using any sharp objects that might scratch the granite. - Rinse the area with clean water and wipe it dry with a soft cloth. 6. **Inspect the Stain**: - Assess if the stain has been removed. If it persists, you may need to repeat the poultice application. 7. **Consider Professional Help**: - If multiple applications of the poultice do not remove the rust stain, it might be time to consult a professional stone care expert. 8. **Prevention**: - To prevent future staining, ensure spills are cleaned up promptly, and consider sealing your granite countertops regularly. Remember, natural stones can be sensitive, and using the wrong method or product can cause damage. Always be gentle and avoid any harsh chemicals not specifically designed for stone surfaces.

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