Quetzalcoatlite is a rare tellurium oxysalt mineral with the formula Zn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2y.

It also contains large amounts of silver- and lead(II)chloride with the formula AgxPbyClx+2y (x+y≤2).

It was named after Quetzalcoatl, the Aztec and Toltec god of the sea, alluding to its color.

[3][4][5] It is not to be confused with tlalocite, which has a similar color and habit.

[3] It occurs as a rare mineral in the oxidized zone of tellurium-bearing hydrothermal deposits and it is often associated with hessite, galena, bornite, cerussite, azurite, chlorargyrite, teineite, quartz, baryte, khinite, dugganite, and gold.