rubis, Daylight,
Photo & Col. © G. Barmarin
Rubis, UV LW,
Luc Yen, Vietnam,
Photo & Col. © G. Barmarin
rubis, UV LW,
Photo & Col. © G. Barmarin
rubis, UV LW,
Mysore District, Karnataka, India
Photo & Col. © G. Barmarin
rubis, UV LW,
Sivec Marble Quarry, Sivec Mountain, Prilep, Macedonia
Photo & Col. © G. Barmarin