“Reference: EY56Z1 Aggregate of Hematite crystals pseudomorphous after Magnetite, with a very sharp octahedral shape and some of them very elongated and almost completely coated by small lenticular recrystallized Hematite. Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province  Argentina (2008) Specimen size: 9.2 × 6.6 × 7.3 cm = 3.62” × 2.60” × 2.87” Main crystal size: 3.4 × 2.7 cm = 1.34” × 1.06” ”