OTO marble lights are exclusively made of Naxian Crystallina.
All the selected pieces have an aggregation of Amphibolites (Black Veins) in the marble. This combination of marble and amphibolites makes each piece unique and unrepeatable, just as it is impossible to find in nature two stones that are the same.
Naxian marble is called “Crystallina” because of its transparency and ability to reflect the light. This ability is a result of the quartz it contains.
Ancient Greeks noted the transparency of Naxian marble and used it for the ceiling of their temples since the 6th century BC. Thin roof tiles of Naxian marble let the sunlight through, offering a natural illumination to the temples’ interiors.
According to Pausanias: