G684 Basalt
G684 Basalt

G684 Basalt

Material: Material: Basalt
Origin of quarry: China
Common finish: Polished, honed, leathered, brushed, flamed, fine picked, bush hammered.
Common applications: Building stone, countertops, sinks, monuments, pool coping, sills, ornamental stone, interior, exterior, wall, floor, paving, mosaic.
Loading port: Xiamen, China
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Products Description

 

G684 Basalt is a fine-grained black basalt commonly used in outdoor paving, cladding, and landscaping. It's known for its dark charcoal color with tiny, evenly spread mineral dots-like black sesame seeds, which is how it got its nickname: "Black Sesame Stone."

 

The tone is deep and stable, making it a popular choice for both modern and traditional projects. It holds up well outdoors and has a clean, uniform look.

 

Products Specification

 

Category Details
Material G684 basalt (natural volcanic stone)
Color Black
Finish Polished, honed, leathered, brushed, flamed, fine picked, bush hammered
Size Options

600 × 400 mm

600 × 600 mm

900 × 600 mm

Custom sizes available

Packing Wooden crates with foam or plastic separation

 

Why Choose G684 Black Basalt?

 

1. Durable: Strong and dense, ideal for high-traffic areas

2. Non-slip: Flamed or bush-hammered surfaces offer great grip

3. Low maintenance: Easy to clean and doesn't stain easily

4. Consistent look: Uniform texture and color

5. Weather-resistant: Performs well under sun, rain, or snow

6. Versatile: Works for both modern and classic designs

basalt 20mm

 

Application

 

G684 is widely used in:

  • Outdoor paving and patios
  • Driveways and parking zones
  • Steps, risers, and stair treads
  • Wall cladding and facades
  • Window sills, curbs, and coping stones
  • Tombstones and monuments

Its deep black tone adds contrast and definition to any outdoor design.

 

Basalt vs. Granite

 

honed basalt tile

Appearance: G684 has a more uniform, matte black look, while granite often shows speckles or crystals. Granite can be glossy; G684 is usually more subtle.

 

Texture: Basalt has a finer grain and smoother texture when honed. Granite tends to be harder and may feel rougher when flamed.

 

Durability: Both are strong, but granite is a bit harder and more scratch-resistant. That said, G684 holds up well in outdoor settings and heavy use.

Testing data

Water Absorption:

0.18%

Density:

2600-2800 kg/cbm

Flexural strength:

17-30 MPa

Compressive strength:

110-226 MPa

 

Precautionary Note

 

Like most dark natural stones, G684 Basalt may lighten slightly over time if exposed to strong sunlight without sealing. We recommend applying a penetrating stone sealer to help preserve the color and improve water resistance. Avoid acidic cleaners to prevent surface damage.

 

If you're not sure which finish or thickness fits your project best, just reach out. I'll help you decide based on where and how you plan to use it.
 

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