African Blue Slate

Slate

This material is recorded as a slate in blue-grey tones. The recorded appearance includes natural cleft. Recorded applications include roofing, flooring, cladding and landscaping.

Stone familySlate

Primary colourBlue-Grey

Medium verification · Reference STN-0003788

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Specification snapshot

Indicative catalogue data. Verify the exact stone, finish, thickness and current test certificates before specification.

Mohs hardness3-4

Water absorption0.10-1.00 %

Compressive strength80-200 MPa

Flexural strength20-50 MPa

Density2600-2850 kg/m³

PorosityNot reported

Material profile

Character & application

Common finishes: Natural cleft, brushed, honed, calibrated
Typical uses: Roofing, flooring, cladding, landscaping, craft
Exterior suitability: High if tested
Frost resistance: Good if selected
Recorded colour palette: Blue-Grey