What material was often used in Roman mosaics?

The use of small pieces of glass and stone, known as tesserae, is a defining characteristic of Roman mosaics. Roman artisans meticulously cut these pieces into various shapes and colors to create intricate designs and images that adorned floors, walls, and ceilings in both public and private spaces. This method allowed for great versatility and detail, enabling artists to depict elaborate scenes and patterns that have survived for centuries.

In contrast, textiles and yarn are not typically associated with the mosaic technique as they do not offer the same durability or detailed finish. While pencil and charcoal are mediums more commonly linked to drawing rather than mosaic creation, sand and clay are generally used in pottery or sculpture rather than in the making of mosaic artworks. Thus, the distinctive qualities of glass and stone tesserae played a crucial role in the artistic and functional aspects of Roman mosaics.