This is a fluorescent Sphalerite from Franklin, NJ.
Size: About 4" x 3" x 1"
Weight: About .5lb
All fluorescent photos are labeled with which wavelength was used.
This is a fluorescent Sphalerite from Franklin, NJ.
Size: About 4" x 3" x 1"
Weight: About .5lb
All fluorescent photos are labeled with which wavelength was used.