- Copper Pseudomorph After Cuprite
- Toenail, 3.1 x 2.6 x 2.5 cm
- Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
A sharp single, floater crystal! This is from the fall-2011 finds here of this highly unusual pseudomorph (replacement): copper has completely replaced the earlier crystals of cuprite, preserving their form and making for a beautiful specimen at the same time. I have never seen such fine copper replacements after cuprite, from other locales. This new (and self-liquidating) mine has produced some amazing things during its short, recent run. few large crystals showed such symmetry as this floater, complete all around. Joe Budd photos.