Scheelite
Photos
Roger Weller, geology instructor
wellerr@cochise.edu copyright 2010-R.Weller
scheelite crystals-2
Mexico
Scheelite also fluoresces a bright blue-white
under an ultraviolet light.
Coincidentally, scorpions also fluoresce the
same color. A rule among prospectors
who use ultraviolet lamps at night is
"Don't pick up a moving scheelite crystal."

scheelite
1
Photo is copyright free for
non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.