sand painting (technique) <p>The making of a design by pouring colored sands, powdered pigments from minerals or crystals, or pigments from other natural or synthetic sources onto a surface to make a fixed or unfixed image. They are often made on the ground or the floor rather than on a separate support. The works may be unfixed or fixed.</p> <p>Source: Art &amp; Architecture Thesaurus</p> <p><a href="http://vocab.getty.edu/page/aat/300375711">http://vocab.getty.edu/page/aat/300375711</a></p>