Purple quartz, known as amethyst, is cut into many small pieces for this slab, and they are set by hand closely enough that the chevron-like banding forms one continuous texture. Up close, smoky violet cores alternate with bright white growth lines; at a distance the surface settles into a fine gray-purple grain, darker in the Medium grade and more silvery in the Light.

Backlighting changes its character: the dense crystal stays dark while the bands light up, which suits bar fronts, reception counters and illuminated wall panels. Slabs are made 2 cm thick as standard, with 0.6 to 4 cm available, and can be produced to project dimensions up to 320 x 190 cm. Although amethyst is a hard-wearing stone, the assembled surface should still be cleaned with a pH-neutral product and kept clear of harsh chemicals.

Where it works

• Backlit bar fronts
• Reception counters
• Illuminated wall panels
• Bathroom vanities