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Material knowledge

Technical specifications

How the four materials really compare — hardness, porosity, frost and translucency — and what a finished slab is actually made of. Tap a material to focus the column.

Property
OnyxTranslucent
MarbleMetamorphic
GraniteIgneous
PorcelainEngineered
HardnessMohs scale · resistance to abrasion
3.0
3.5
6.5
7.5
Water resistanceInverse of porosity
Porous
Medium
Low abs.
≈ 0%
Frost resistanceSuitability for outdoor / cold
No
Partial
Yes
Yes
TranslucencyBack-lit potential
High
Low
None
None
Scratch resistanceEveryday durability
Soft
Soft
Hard
Hardest
Heat resistanceHot pans, fireplaces
Care
Care
Yes
Yes
Best useWhere it performs
Back-lit walls
Floors, baths
Worktops, façades
Floors, wet, façade

Indicative values for comparison — exact figures vary by quarry batch and finish. Request a full technical sheet per stone.

Anatomy

The structure of a slab.

Click a layer to read what it does — from the finished face to the substrate behind it.

Surface finish~0.1 mm
Natural stone body20–30 mm
Fibreglass mesh~1 mm
Adhesive & substratevaries
02

Natural stone body

The slab itself. Veining and translucency run right through the material — what you see on the surface continues into the depth. This is where hardness, porosity and translucency are decided.