Mexican Willemite in Smithsonite under UV (via Cran Cowan | Flickr - Photo Sharing!)
Smithsonite (Pink/Purple) Willemite (Green)
Source: flickr.com
Scoria rock under ultraviolet containing calcite (red), hydrozincite (light blue), willemite (green/yellow) and smithsonite (pink/blue) (by someHerrings)
Source: flickr.com
Visible are willemite (green), calcite (orange-red), and on some of the foreground boulders, hydrozincite (blue). Photo was taken during the April 2008 dig. The annual event has featured the illumination of the ore vein by huge SW UV lights during the evening fluorescent mineral collecting.
Willemite (green) and calcite (red) under ultraviolet. The laser beam photographs blue.
by Sea Moon
Source: flickr.com