Onyx forms as calcium carbonate carried by spring waters settles, layer upon layer, over thousands of years. Unlike marble, its crystal structure does not stop light at the surface; light enters the stone, diffuses between the layers, and emerges, softened, on the other side.
This is why an unlit Nyxora is a solid sculpture, while a lit one becomes a stained-glass window whose veins appear one by one. The vein map of each block exists only once; in the atelier, the block number of every piece is recorded.
We keep the wall thickness of the stone within 6–12 mm, thin enough to let light through and thick enough to withstand everyday use.



