Zunyite with Pyrite and Kaolinite – Zuni Mine, Anvil Mountain, Silverton District, Colorado, USA
 
Sharp glassy Zunyite tetrahedra to 1,5 mm in a vuggy grey Diaspore matrix with fine-grained golden Pyrite and white Kaolinite. Such specimens of the unusual aluminium silicate from the type locality are hard to come by! From a historical find (1968)