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Obama Gray Marble

Obama Gray Marble

Marble

China

About

Item Details

Material Type:
Marble
Origin:
China (Guizhou)
Recommended Usage:
Kitchen and bathroom countertops, monuments, building stone, ornamental stone, building stone, stairs, interior wall and floor applications, mosaic, waterjet pattern, wall panels, table tops, columns, fireplace surround
Additional Names:
Grey Wood Grain Marble, Athen Grey Marble, Ash Wood Marble, Wood Grain Marble, Galanz Grey Marble, in China Stone Market:灰木纹(Huī Mù Wén), 贵州木纹(Guìzhōu Mùwén), 挪威木纹(Nuówēi Mùwén), 奥巴马灰(Ào bā mǎ huī)
Finished Surface:
Polished,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling

Testing

Water Absorption:
0.46% by weight
Density:
2650 - 2680 kg/m³
Flexural Strength:
8.3 MPa
Compressive Strength:
108.4 MPa

Description

Obama Gray Marble is a unique natural stone quarried in China. It is renowned for its striking resemblance to the grain and texture of natural wood, offering a sophisticated and organic aesthetic to architectural and design projects. This marble blends the visual warmth and elegance of wood with the strength and durability of natural stone, making it a highly sought-after material in the global market.

Appearance

Color: Predominantly cool-toned gray background with variations in intensity, ranging from light to dark gray. Hints of beige or taupe may occasionally be present, adding warmth and depth to the stone.

Texture: Fine to medium-grained crystalline structure typical of marble, providing a smooth and refined surface.

Pattern: Intricate wood-like veining and grain patterns that closely mimic the natural beauty of wood. Flowing, linear streaks or wavy patterns add a sense of movement and depth, enhancing the stone’s natural elegance.

Physical and Mechanical Properties

(Typical Test Results)

  • Density: 2.65 - 2.68 g/cm³ (2650 - 2680 kg/m³)
  • Water Absorption: 0.46% by weight (indicates moderate porosity, requiring sealing for certain uses)
  • Compressive Strength: 108.4 MPa (suitable for most interior applications)
  • Flexural Strength: 8.3 MPa
  • Porosity: Generally low, typically <1% (consistent with marble’s fine-grained texture)
  • Mohs Hardness: ~3-4 (softer than granite, typical for marble)
  • Slip Resistance (COF):

        Polished finish: ~0.5-0.6 (less slip-resistant)

        Honed, brushed, or leathered finishes: improved slip resistance for flooring and wet areas.

Chemical and Mineral Composition

(% by weight, typical)

  • Calcium Carbonate (CaCO3): ~92-95% (calcite-rich)
  • Magnesium Carbonate (MgCO3): ~1-2%
  • Quartz (SiO2): ~0.5 - 1.0%
  • Other minerals: Trace amounts of iron oxides (responsible for subtle warm shades) and clay minerals, contributing to the natural variations in tone and veining.

Usage

Interior applications:

  • Floor tiles and large-format panels
  • Wall cladding and feature walls
  • Kitchen countertops, vanity tops, and backsplashes
  • Stairs, risers, and fireplace surrounds
  • Decorative accents and furniture applications

Exterior applications:

  • Best suited for mild climates and protected areas, as marble can weather with exposure to freeze-thaw cycles.

Maintenance

  • Sealing: Recommended to apply a penetrating sealer upon installation and reapply annually for optimal protection against stains and moisture.
  • Cleaning: Use pH-neutral, stone-safe cleaners to avoid etching and maintain the marble’s natural luster.
  • Polishing: Periodic re-polishing may be needed for high-traffic areas with polished finishes.
  • Textured finishes: Brushed, leathered, or honed surfaces require less frequent polishing and offer better slip resistance.

Cutting Sizes

Slabs: Typically cut in large sizes: 240 cm × 120 cm (or customized sizes on request).

Tiles: Common dimensions: 30×30 cm, 60×60 cm, 60×120 cm.

Custom cutting and waterjet cutting are also available for unique design needs.

Surface Finish Options

  • Polished: High-gloss finish, enhancing the stone’s natural color and veining for an elegant, luxurious appearance.
  • Honed: Smooth, matte finish that reduces glare and is ideal for flooring or wall cladding.
  • Brushed: Subtly textured surface with a soft sheen, creating a warm, tactile feel.
  • Leathered: Softly textured and slightly matte, offering an organic, modern aesthetic with increased slip resistance.
  • Sandblasted: Coarse, rugged finish ideal for exterior and slip-resistant applications.
  • Tumbled: Softened edges and slightly antiqued finish for a rustic, natural look.

FAQ

Is 2cm thick Obama Gray Marble good for stairs?

It depends on the specific use and traffic on the stairs. Generally, 2cm thickness may not be ideal for stairs as it may not provide enough durability and stability, especially for high traffic areas. It is recommended to use thicker marble or more suitable materials for stairs to ensure longevity and safety.

How to make Obama Gray Marble countertop waterproof?

To make your Obama Gray Marble countertop waterproof, you can follow these steps: 1. Clean the countertop thoroughly with a mild soap and water solution to remove any dirt, grime, and residues. 2. Once the countertop is clean and dry, apply a high-quality marble sealant according to the manufacturers instructions. Make sure to choose a sealant that is specifically designed for marble countertops. 3. Use a soft cloth or sponge to apply the sealant evenly on the surface of the countertop. Allow the sealant to penetrate the marble and dry completely before using the countertop. 4. Repeat the sealing process every 6-12 months to ensure that the countertop remains waterproof and protected against stains and spills. 5. Be mindful of spills and moisture on the countertop, and wipe them up promptly to prevent water damage and staining. By following these steps and maintaining your Obama Gray Marble countertop properly, you can ensure that it remains waterproof and looking beautiful for years to come.

How to clean red stain wine off Obama Gray Marble countertop?

1. Blot the red wine stain with a clean cloth to remove as much of the liquid as possible. 2. Mix one tablespoon of dish soap with warm water in a bowl. 3. Dip a clean cloth into the soapy water mixture and gently scrub the stained area of the countertop. 4. Rinse the cloth with clean water and continue to scrub the stain until it starts to lift. 5. If the stain persists, you can create a paste with baking soda and water and apply it to the stain. Let it sit for a few minutes before scrubbing gently with a cloth. 6. Rinse the countertop with clean water and dry it thoroughly with a clean towel. 7. For tougher stains, you can also try using a commercial marble cleaner or a mixture of hydrogen peroxide and ammonia. Be sure to follow manufacturer instructions and test in an inconspicuous area first. 8. Once the stain is removed, apply a marble sealer to protect the countertop from future stains and spills.

How can I remove red dye from Obama Gray Marble kitchen countertop?

To remove red dye from Obama Gray Marble kitchen countertop, you can try the following methods: 1. Start by blotting the stain with a clean, white cloth to remove any excess dye. 2. Mix a solution of warm water and mild dish soap. 3. Dampen a clean cloth in the soapy water and gently scrub the stained area. 4. Rinse the area with clean water and dry with a soft cloth. 5. If the stain persists, you can try using a commercial stone cleaner or a poultice made of baking soda and hydrogen peroxide. 6. Apply the poultice to the stain, cover with plastic wrap, and let it sit overnight. 7. Remove the poultice the next day and rinse the area with clean water. 8. If the stain is still visible, you may need to consult with a professional stone restoration expert for further assistance.

How can I protect Obama Gray Marble kitchen countertop from water stains?

Here are some tips to protect your Obama Gray Marble kitchen countertop from water stains: 1. Seal the marble countertop: Use a high-quality sealant specifically designed for marble to create a protective barrier against water stains. Regularly reseal the countertop to maintain its effectiveness. 2. Wipe up spills immediately: Promptly clean up any spills or water droplets on the countertop to prevent them from seeping into the marble and causing stains. 3. Use coasters and placemats: Place coasters or placemats under glasses, cups, and dishes to prevent water rings and stains from forming on the marble surface. 4. Avoid acidic and abrasive cleaners: Do not use harsh cleaning agents containing acidic or abrasive ingredients on the marble countertop, as they can damage the surface and make it more prone to water stains. 5. Use a soft cloth or sponge for cleaning: Gently wipe the countertop with a soft, damp cloth or non-abrasive sponge to remove any dirt or spills without scratching or damaging the marble. 6. Regular maintenance: Regularly clean and maintain the marble countertop by dusting, wiping, and polishing it to keep it looking beautiful and protected from water stains.

Can Obama Gray Marble countertop be scratched with a knife?

It is possible for a knife to scratch an Obama Gray Marble countertop, as marble is a softer stone than materials like granite or quartz. It is important to use cutting boards or other protective measures when working with sharp objects on marble countertops to prevent scratches and damage.

Do I need a special blade to cut Obama Gray Marble 3cm thick tile?

Yes, it is recommended to use a diamond blade specifically designed for cutting hard materials like marble. Using a regular tile cutter blade may not be effective and can result in chipping or cracking of the tile. Diamond blades are designed to make clean and precise cuts on hard materials, including Obama Gray Marble.

How can I clean the grout of antique finish Obama Gray Marble tiles?

To clean the grout of antique finish Obama Gray Marble tiles, you can follow these steps: 1. Start by removing any loose dirt or debris from the grout lines using a vacuum cleaner or dry brush. 2. Mix a solution of warm water and a mild detergent or pH-neutral cleaner in a bucket. 3. Use a scrub brush or toothbrush to apply the cleaning solution to the grout lines. Scrub in a circular motion to loosen any dirt or stains. 4. For tougher stains, you can use a paste made of baking soda and water. Apply the paste to the grout lines and let it sit for a few minutes before scrubbing. 5. Rinse the grout lines with clean water to remove any remaining cleaning solution or residue. 6. Dry the grout lines thoroughly with a clean, dry towel. 7. For a deeper clean, you can also use a grout cleaner specifically formulated for marble tiles. Follow the manufacturers instructions carefully. 8. To maintain the cleanliness of the grout lines, avoid using harsh chemicals or abrasive cleaners that can damage the marble tiles. Regularly clean and seal the grout to prevent staining and discoloration.

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