Citation: Kampf, A. R.; Mills, S. J.; Housley, R. M.; Marty, J.; Thorne, B. (2010). Lead-tellurium oxysalts from Otto Mountain near Baker, California: IV. Markcooperite, Pb(UO2)Te6+O6, the first natural uranyl tellurate. American Mineralogist, 95, pp. 1554-1559.