Ultramarine

Ultramarine is a deep blue pigment historically derived from lazurite, the principal component of the metamorphic rock lapis lazuli. The pigment was produced by grinding the stone and undergoing a complex washing process to isolate the blue mineral, which made it exceptionally valuable. The name ultramarine comes from the Latin ultramarinus, meaning “beyond the sea,” referring to its import into Europe by Italian traders from mines in Afghanistan during the 14th and 15th centuries. Venice served as a major center for this trade and distribution. Ultramarine was among the finest and most expensive blue pigments used by Renaissance painters, at times valued as highly as gold in Europe. It was especially used for the robes of the Virgin Mary, symbolizing purity, holiness, and status. The pigment remained costly until the development of synthetic ultramarine in 1826. Ultramarine is generally considered a permanent pigment under stable conditions, though it may discolor or fade under unfavorable environmental factors.