Hematite pseudo. Magnetite from Payun Volcano, Malargue Dept., Mendoza Province, Argentina

A superb specimen of a totally unique mineralogical discovery made a number of years ago at an Andean volcano near the Argentina/Chile frontier,a most desolate location looking more like the surface of Mars.
Dimensions: 8.7 x 6.8 x 4.5 cm
Species: Hematite pseudo. Magnetite
Locality: Payun Volcano, Malargue Dept., Mendoza Province, Argentina