I’ve added excellent specimens from two great Peruvian localities in this Peru Update (click here) – tennantite specimens from Mundo Nuevo and pyrite specimens from Huanzala.
The Mundo Nuevo tennantites are excellent specimens for the species. Mined during 2014-15 specimen recovery work, they are part of a find that has now been analyzed quite extensively. Of those (over 40 specimens tested) all were tennantite except one that was a borderline tennantite-tetrahedrite. Accordingly, specimens from this find are now labelled tennantite. I have not had each of these analyzed, given the pervasive tennantite results (and not wanting to add to their prices by incurring unnecessary cost). These tennantites were originally posted on this website labelled “tetrahedrite”, as they were sold to me under that label – they were then removed from the site until the analysis work on the find had been completed.

 Tennantite, Mundo Nuevo Mine, Mine, Huamachuco, Sanchez Carrion Province, La Libertad Dept., Peru
Field of view 4.0 cm

Tennantite, Mundo Nuevo Mine, Mine, Huamachuco, Sanchez Carrion Province, La Libertad Dept., Peru – 8.1 cm

Tennantite, Mundo Nuevo Mine, Mine, Huamachuco, Sanchez Carrion Province, La Libertad Dept., Peru – 8.0 cm

 Pyrite, Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru – 11.5 cm

Pyrite, Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru – 5.3 cm

Pyrite, Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru – 5.6 cm