A picture in the Vatican Codex B (p. 48) represents a temple, on the summit of which a large obsidian mirror is standing on its edge. Inside the doorway there are many small black spots, which obviously represent small mirrors and convey the idea that the interior walls were incrusted with such. These illustrations would prove that sacred edifices were associated with obsidian mirrors even if Sahagun did not mention, as he does (book II, appendix), no less than three sacred edifices in the great temple of Mexico, which were associated with obsidian mirrors. It is, moreover, stated by Duran that "in Mexico the image of the god Tezcatlipoca was a stone, which was very shining and black, like jet. It was of the same stone of which the natives make razors and knives," _i. e._, obsidian (Duran II, p. 98).
What is more, Bernal Diaz relates that the image of Tezcatlipoca, which he saw beside the idol of Huitzilopochtli in the hall of the great temple of Mexico, had shining eyes which were made of the native mirrors=tezcatl. "In connection with the shining eyes" of the god it is interesting to note that when, as Duran states, he was represented under another form, his idol "carried in its hand a sort of fan made of precious feathers. These surmounted a circular gold disc which was very brilliant and polished like a mirror. This meant that, in this mirror, he saw all that went on in the world. In the native language they named it 'itlachiayan,' which means, that in which he looks or sees" (Duran, _op. cit._, vol. II, p. 99).
Sahagun mentions an analogous sceptre which consisted of "a gold disc pierced in the centre, and surmounted by two balls, the upper and smaller of which supported a pointed object. This sceptre was called tlachieloni, which means 'that through which one looks or observes;' because with it one covered or hid one's face and looked through the hole in the middle of the gold plate." This kind of sceptre is not exclusively associated with Tezcatlipoca in the native picture writings, for it figures in the hand of Chalchiuhtlycue "the sister" of Tlaloc and of Omacatl whose attributes, the reeds and chalchiuite or jade beads, prove him to be also associated with the water. On the other hand the same sceptre is also assigned by Sahagun to the god of fire.