SOLD Copper, Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia Miniature 3 x 3 x 6.7 cm $250. Online 7/7
Group of branching copper crystals with rich cupric red patina. The crystals are very sharp and show textbook tetrahexahedrons and Spinel Law twinning. This location will go on the record as one of the most significant finds in the 21st century for both copper and cuprite. Mined 2010. No faults.