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Nickeltyrrellite

About

The Ni analogue of tyrrellite. Unique combination of elements.

Nickeltyrrellite formed in response to alteration of quijarroite + hansblockite + watkinsonite + clausthalite + penroseite aggregates by oxidizing, low-T, Cu-Ni-Co-Pb-bearing fluids at a fSe2/fS2 ratio greater than unity (Förster et al. 2019).

Type Locality
El Dragón mine, Porco Municipality, Antonio Quijarro Province, Potosí, Bolivia
Mineral Data
CuNi2Se4
Isostructural with: 
Tyrrellite
Physical Properties
Colour: 
Black
Crystal System: 
Isometric