How the materials in our library really compare — quartz, marble, onyx and quartzite — on hardness, water absorption, strength, frost and translucency, and what a finished slab is actually made of. Tap a material to focus the column.
Indicative values for comparison — exact figures vary by quarry batch and finish. Request a full technical sheet per stone.
Click a layer to read what it does — from the finished face to the substrate behind it.
The slab itself — natural stone (marble, onyx, quartzite) or engineered quartz. In natural stone, veining and translucency run right through the material; engineered quartz is a dense, uniform resin-bound body. This is where hardness, porosity and translucency are decided.