Works of "Research Collection"
Place Collected: Rochlitz
Place Collected: Montebras
Place Collected: Montebras
Place Collected: Challanches
Place Collected: Arqueros
Place Collected: Freiberg
Place Collected: Hrbek Mine
Place Collected: Glandore
Place Collected: Mt. Vesuvius
Place Collected: Nordmark
Place Collected: Dognacea