SOLD Bournonite - Cogswheel type crystals
stock #SOLD 19.1-856
Colavi Mine, Machacamarca district, Cornello Saavedra Province
3.1 x 2.6 x 2.4 CM (small miniature/ large thumbnail (toenail))
A fine complete cogswheel cluster of Bournonite crystals that is perfect on all sides, undamaged and with classic gunmetal luster. Bournonite is a delicate mineral and perfect clusters of this sort are quite rare. A tiny bit of adhering matrix gives some nice contrast. This is a very fine and unusually sharp specimen from Bolivia that really looks just like a vintage Herodsfoot specimen. From recent mining this is obviously far less expensive than the English classics!