Bluestone (Victorian basalt), 600x300x20mm, honed (20mm)
Dense volcanic basalt with proven 150+ year performance in Australian conditions. Non-combustible, highly durable stone suitable for building envelopes, with excellent weathering characteristics and natural patina development.
Dense volcanic basalt with proven 150+ year performance in Australian conditions. Non-combustible, highly durable stone suitable for building envelopes, with excellent weathering characteristics and natural patina development.
Victorian bluestone is an olivine basalt formed from volcanic activity 4.4 million years ago, quarried throughout Victoria's western plains. This dense, fine-grained igneous rock has been Melbourne's quintessential building material since the 1830s, demonstrating exceptional durability in Australian conditions. The material develops an attractive weathered patina over time, transitioning from deep blue-grey to lighter grey tones.
- Non-combustible (BAL-FZ compliant)
- 150+ year proven Australian performance
- Low water absorption (1.4-1.83%)
- Excellent freeze-thaw resistance
- Develops attractive natural patina
- 100% recyclable at end of life
- Locally sourced Victorian material
- High compressive strength (126 MPa)
- Zero VOC emissions
- Termite and pest resistant
- 01 Non-combustible (BAL-FZ compliant)
- 02 150+ year proven Australian performance
- 03 Low water absorption (1.4-1.83%)
- 04 Excellent freeze-thaw resistance
- 05 Develops attractive natural patina
- 01 High thermal conductivity (minimal insulation)
- 02 Heavy weight (52kg/m² at 20mm)
- 03 Requires annual sealing for honed finish
- 04 No EPD available (limits Green Star credits)
- 05 Skilled installation required
- Density
- 2596 kg/m³
- Specific gravity
- 2.6
- Porosity
- 4.55 %
- Water absorption
- 1.83 %
- Hardness
- 6.5
- UV resistance
- Good - natural fading to lighter grey // [Field observation]
- Chemical resistance
- Good except acids // [Stone care guidelines]
- pH tolerance
- 4-10
- Surface roughness
- 0.5 µm
- Tensile strength
- 14.5 MPa
- Compressive strength
- 126 MPa
- Flexural strength
- 15.3 MPa
- Poisson's ratio
- 0.25
- Impact resistance
- High // [Stone properties]
- Creep resistance
- Excellent // [Natural stone properties]
- Recycled content
- 0 %
- Renewable content
- 0 %
- Combustibility class
- Non-combustible // [NCC C2D10(5)]
- Fire resistance level
- System dependent // FRL requires assembly testing
- Flame spread index
- 0
- Smoke dev. index
- 0
- Heat release rate
- 0
- Material cost (range)
- 66-70 // $/m² sawn finish [Stone Central 2024]
- Material cost (per unit)
- 85
- Lead time
- 2-4 weeks // [Standard availability]
- Annual maintenance
- 5
- Market availability
- Good // [Multiple Victorian suppliers]
- Expected lifespan
- 100
- Maintenance interval
- Annual // Sealing and inspection
- Warranty period
- Materials only // Defects warranty