Pseudomorph of limonite after pyrite, Mayer, Arizona

Whereabouts

I am hazy on where I found this.  I believe it was in the Mogollon Rim area near Mayer, Arizona, in country rock of Precambrian age (late Paleoproterozoic).  I like the form of this, and the earthy hue, and the delicacy of the selective replacement over time.

Age & Formation
Unknown
QTVR