New Jersey fluorescent minerals

      All the specimens at right are from Franklin, New Jersey.  The minerals represented here are calcite, willemite, franklinite and hardystonite.  New Jersey is known as the fluorescent capital of the world and these minerals are the bread and butter of every fluorescent collection.   The photos to the right show the transformation of a rather ordinary looking rock under normal light in the left hand column to its fluorescent  colors using long and short wave ultraviolet lights.  In the center column the purple and pink colors are likely the result of reflection of the light off the otherwise white surface.  The green is the result of fluorescence of the willemite under long wave ultraviolet light.  This fluorescence under long wave is very faint.  In the right hand column you see the minerals fluorescing under short wave ultraviolet light.  The red/orange is calcite.  The green, for the most part is willemite.  The black areas are franklinite (it doesn't fluoresce).  If you will notice the upper left areas of the specimens, under fluorescent light, in the two middle rows, they are a dark purple under long wave.  Under short wave they are a darker green than the willemite.  This mineral is hardystonite.  An added bonus of New Jersey minerals is that the willemite in the specimens will phosphoresce for a short while after the lights are turned of in a darkened room.




Regular lighting

 

Regular lighting

 

Regular lighting

 

Regular lighting

 

 

 

 

Long wave ultraviolet light

 

Long wave ultraviolet light

 

Long wave ultraviolet light

 

Long wave ultraviolet light

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short wave ultraviolet light

 

Short wave ultraviolet light

 

Short wave ultraviolet light

   

Short wave ultraviolet light