- Quartz Pseudomorphing After Wulfenite
- Finch Mine, near Winkelman, Gila County, Arizona, USA
- Small Cabinet, 9.1 x 7.0 x 5.4 cm
- Ex. Harold Urish
As far as I know, this locality is the only Arizona mine where quartz has pseudomorphed wulfenite crystals. I think Tsumeb did this rarely, but not with such color. These have, therefore, been long considered one of the most memorable of finds for Arizona for the color and uniqueness of the deposit. A silicified limestone is the matrix for these pastel orange-pink crystals, to .75 cm across. In some instances, broken crystals have revealed a core of wulfenite, signifying that not all crystals have been totally pseudomorphed. However, most are near to fully replaced and translucent, and complete. A most unusual occurrence!