Basalt Rocks are dark volcanic stones with a rugged, natural look.
Sizes
150mm – 2000mm
Formats
Landscaping stone
Naturally flat plates
Crushed rock
Colac Basalt Rock
Available Size & Format
- Landscaping stone: 150 mm – 2000 mm, depending on requirements
- Naturally flat plates – suitable for steps and large feature applications
- Complimentary crushed rock – available in matching tones on request
Appearance
Colac Basalt is a dark volcanic stone with a rugged, natural look. Its texture is typically more porous and aerated, giving the stone distinctive character with irregular shapes. When cut, Colac Basalt often reveals a striking blue tone, while in its natural form colours range from earthy browns through to deep blues and charcoal greys. Each piece carries unique variation, offering projects a one-of-a-kind finish.
Common Uses
Colac Basalt is popular in both residential and commercial landscaping:
- Dry-stone and retaining walls – rugged texture adds strength and authenticity.
- Feature boulders – bold, natural pieces for gardens, entryways, and civic landscapes.
- Native garden designs – complements Australian planting schemes.
- Steps & natural seating – naturally flat sections make it practical for functional use.
Workability
Colac Basalt is a hard and durable stone, but less forgiving to work with than some other basalts.
- Cutting & drilling – possible, though its hardness and natural aeration make results less consistent.
- Best used in natural form – steps, walls, and boulders take advantage of its irregular structure.
- Recommendation – for projects requiring precise fabrication, consider specifying pre-cut alternatives.
Unique Qualities
- Lightweight volcanic basalt – more porous and aerated than many other stones.
- Distinctive texture – rugged surfaces and natural aeration create a unique finish.
- Rich colour range – from deep charcoal through to earthy browns and blue tones.
- Authenticity – brings a raw, natural character to both traditional and modern landscape projects.
