Cipollino marble ("onion-stone") was a variety of marble used by the ancient Greeks and Romans, whose Latin term for it was marmor carystium (meaning "marble from Karystos"). It was quarried in several locations on the south-west coast of the Greek island of Euboea, between the modern-day cities of Styra and Karystos. The colour of its base and grain grows darker the further north the location of the quarry. It is a metamorphic rock, a crystalline marble with crystals between 0.2 and 0.6 mm, with coloured veins of epidote and chlorite.
