The Dibble and Anderson translation of the Florentine Codex states how this stone "surpasses all other precious stones," it is like a droplet of water, or like the blue at the tip of a flame, or the blue of cotinga feathers. The Spanish language text on the same page says this stone is a sapphire, referring to a Nahuatl-language written account. (SW)
Sahagún, Bernardino de, Antonio Valeriano, Alonso Vegerano, Martín Jacobita, Pedro de San Buenaventura, Diego de Grado, Bonifacio Maximiliano, Mateo Severino, et al. Historia general de las cosas de Nueva España (Florentine Codex), Ms. Mediceo Palatino 218–20, Biblioteca Medicea Laurenziana, Florence, MiBACT, 1577. Available at Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter, Alicia Maria Houtrouw, Kevin Terraciano, Jeanette Peterson, Diana Magaloni, and Lisa Sousa, bk. 11, fol. 209r. Los Angeles: Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/209r . Accessed 4 December 2025.