Hubnerite on Quartz

76 x 47 x 45 mm overall
up to 23 mm Ferberite

Black, blocky crystals of Hubnerite are intergrown with sharp, clear, tapered Quartz points to 47 mm long. The largest Hubnerite measures 23 x 8 x 7 mm. Most specimens are labeled as Hubnerite from this well-known Peruvian locale. There is no red flash in this specimen, indicating there is a small amount of iron present. Prior analytical work suggests that Ferberite is likely not present at this locality. This is a very fine and aesthetic specimen, in excellent condition.

ex. Carolyn Seitz collection