exclusiveminerals2:
Pyrolusite pseudomorphs after manganite, Iron Monarch Quarry, Iron Knob, Middleback Range, Eyre Peninsula, South Australia (state), Australia; 17 cm across
exclusiveminerals2:
Sphalerite and galena crystals on chalcopyrite, Gjudurska Mine, Rhodope Mountains, Bulgaria; 15 cm across
exclusiveminerals2:
Calcite casts on quartz, Deccan basalts, India; 15 cm across