new icn messageflickr-free-ic3d pan white
Scheelite 6 samples 404nm fl | by The^Bob
Back to photostream

Scheelite 6 samples 404nm fl

Six different samples of scheelite (calcium tungstate) fluorescing under 404nm laser excitation. The narrow emission lines are due to rare earth elements (lanthanides), principally trivalent Sm, Dy and Nd but also Eu and Tb.

399 views
0 faves
0 comments
Taken on September 10, 2012