1. Aebersold L.(2018).Getting to the bottom of it: Geoarchaeological and paleobotanical investigations for early transitions in the Maya lowlands. Ph.D. dissertation Department of Anthropology University of Texas at Austin.
2. Maya Blue
3. Attapulgite and Maya blue an ancient mine comes to light;Arnold D. E.;Archaeology,1975
4. Maya blue: Where did its palygorskite constituent originate?;Arnold D. E.;La Tinaja: A Newsletter of Archaeological Ceramics,2008
5. The first direct evidence of pre-columbian sources of palygorskite for Maya Blue