There are no ages for Argentojarosite at Cactus Gold Mine (Blue Eagle Mine; Middle Buttes Mine; Cactus Mine; Cactus Queen Mine; Shumake Deposit; Shumake Mine), Middle Buttes Deposit (Cactus Deposit), Middle Butte, Rosamond, Mojave-Rosamond District (Mojave District), Kern Co., California, USA