- Phosphophyllite cluster
- Unificada Mine, Cerro de Potosi, Potosi City, Potosi Department, Bolivia
- Thumbnail, 1.5 x 1.5 x 0.8 cm
Rarer than almost anything else, Phosphophyllite is probably the most sought after of mineral species by collectors, considered one of mineral collecting's holy grails. This thumbnail is a cluster of incredibly bright, lustrous, GEM crystals of twinned Phosphophyllite from this old locality. Complete alla round, this is a rare cluster. In person, it is even more gemmy, and better than the pics. Crystals like this were found almost 70 years ago, and not in this quality since.