- Small Cabinet, 6.6 x 5.3 x 3.6 cm
- Goldfield, Nevada, USA
- Ex. Richard Hauck
This is a rare hydroxyl, of potassium, iron, sulfate, usually found in arid environments, such as Goldfield. In this case, we have a sparkling, druse, of reddish-brown, crystals on a pitted, vuggy, matrix.