[citation needed] Using stones that are of relatively uniform color and texture (typically pre-cut natural gemstones such as jasper, marble, or amethyst), the resulting mosaics have a uniquely ethereal quality that distinguishes them from traditional processes.
By Roy Feinson's definition, impressionist mosaics are created by taking dozens of measurements of every tile in the artist's "palette".
[2] Traditional mosaics have a history dating back to at least the fourth century BC, and employ a variety of methodologies to create their images.
However, traditional mosaics share the common feature of employing small, uniformly colored materials (tesserae) to create a pattern or picture.
Because the tiles can be cut into irregular shapes to conform to the base pattern, mosaisists are able to create works of astonishing detail and color.