Tofi, you will find an IM in your box.  This has to do with crystals.

The image here is shot of a crystal of topaz, about 2" long(5.08cm).  Macro lens used but not quite 1:1 ratio.   Lighting is at my work place, simple fluorescent lamp with white balance corrected and with an improvised "infinity curve" of white plastic.  This is not the place for this shot but posted to let you know I do have some stuff for you later.

Gotta run.  chili hotdog time for supper tonight.    Tom.