Tozour Family's Fluorescent Rocks: Hackmanite, Kola Peninsula, Russia, after many cycles of UV and Daylight 9-28-99

HackmaniteKolaPeninsulaRussia10minWhiteLight10-12-98.html

Tenebrescence.html

HackmaniteKolaPeninsulaRussia15minSWUV9-28-99.html

Hackmanite, Kola Peninsula, Russia, after many cycles of UV and Daylight 9-28-99

Hackmanite, Kola Peninsula, Russia, after many cycles of UV and Daylight 9-28-99