mosaics (visual works) <p><span data-sheets-value="{" data-sheets-userformat="{">Images or patterns composed of small, regularly shaped pieces of durable material, usually stone or colored glass. Distinguished from "opus sectile," which is composed of individually shaped pieces of durable material, usually stone or glass, which conform to the design or pattern.</span></p> <p><span data-sheets-value="{" data-sheets-userformat="{">Source: AAT</span></p> <p><span data-sheets-value="{" data-sheets-userformat="{"><a class="in-cell-link" href="http://vocab.getty.edu/page/aat/300015342" target="_blank" rel="noopener">http://vocab.getty.edu/page/aat/300015342</a></span></p>