Tibetan monks use this substance to create large, colorful mandalas.
An artform that uses this substance was controversially adapted into weavings by the two-spirit artist Hosteen Klah. Black stones and this substance are placed on lacquer trays to create landscapes in the bonseki genre. A word meaning "places where the gods come and go" identifies paintings made of this substance, which are sometimes colored with corn pollen and created in ceremonies led by hataalii singers among the Navajo. Practitioners of another art form involving this substance vibrate rods along perforated metal funnels called chak-pur in order to apply it to the surface. Artworks usually depicting four gates surrounding (*) concentric circles are made out of this substance, then destroyed and thrown in a river. Tibetan monks use this substance to create large, colorful mandalas. For 10 points, name this substance, the namesake of a type of stone that was used to carve the Buddhas of Bamiyan and the Sphinx.
An artform that uses this substance was controversially adapted into weavings by the two-spirit artist Hosteen Klah.
sand [or gravel; prompt on powder, dust, crushed rock or stone, etc.]