Roger Weller, geology instructor
Fluorescent Pair- 9
Franklin, New Jersey
The first view is a mineral
observed under normal light,
while the second is the same mineral viewed under ultraviolet light.
The mineral that fluoresces a bright yellowish green is willemite
and the mineral that fluoresces red is calcite.
Photos are copyright free for non-commercial educational uses.
Just credit photos to R.Weller/Cochise College.