

16th Place, 1994
Dr. Kari A. Kinnunen
Geological Survey of Finland
Espoo, Finland
Diamond crystal showing photogenic dissolution markings (31.8x)
Rheinberg illumination


Dr. Kari A. Kinnunen
Geological Survey of Finland
Espoo, Finland
Diamond crystal showing photogenic dissolution markings (31.8x)
Rheinberg illumination