Minéraux fluorescents

 

Le rubis est un variété de corindon qui contient des traces de chrome. La couleur rouge du rubis en lumière naturelle ainsi que sa fluorescence proviennent du chrome.

Ruby is a variety of corundum that contains trace-amounts of chromium. The chromium causes the red color of ruby in plain light as well as its red fluorescence.


CORUNDUM, (var. Ruby) Karnataka State, India
UV longs / long-wave
collection et photographie © Axel Emmermann
Courtesy of the
MKA (Mineralogische Kring Antwerpen)