xaxalli.

Headword: 
xaxalli.
Principal English Translation: 

sandy soil
Barbara J. Williams, "Pictorial Representation of Soils in the Valley of Mexico: Evidence from the Codex Vergara," Geoscience and Man 21 (1980), 51–62; see p. 56.

Attestations from sources in English: 

“In Nahuatl glyphics, clusters of dots denote sand, xalli, and the glyph probably signifies xalalli, sandy soil (Sahagún, 1963, p. 251, 252).” (p. 56)
Barbara J. Williams, "Pictorial Representation of Soils in the Valley of Mexico: Evidence from the Codex Vergara," Geoscience and Man 21 (1980), 51–62.