Follows Camp Craig
Full Member
- Dec 1, 2013
- 185
- 68
- Detector(s) used
- Team Keene Outlaw
- Primary Interest:
- All Treasure Hunting
Anyone who has ever visited the museum of natural history (any town usa)
probably remembers that mineral section with the black light portion of the display.
Different minerals would fluoresce different colors.
Anybody ever use this technique?
I learned how this works my mistake.
I was working as N.D.T. technician and was in the field performing a fluorescent dye penetrant test on a heat exchanger.
The black light we were using was obviously industrial quality and utilized its own filtering lens and transformer which tucked away nicely in its carrying case.
While looking for what should be now glowing cracks if there were any, and there was. I noticed that several of the diamonds in my wedding band were now fluorescing,
2 orange and 1 blue while the rest appeared a colorless black.
Come to find out, the higher quality diamonds were the colorless black while exposed to the black light.
Years later my step dad mentioned that there was tungsten ore in the east fork of the San Gabriel river that would fluoresce white and if
you could find the source it would be a new mother lode for someone, sadly I couldn't find an extension cord long enough.
Other than those psychedelic posters you had in your room as a teenager, what are your experiences with black lights?
Craig
probably remembers that mineral section with the black light portion of the display.
Different minerals would fluoresce different colors.
Anybody ever use this technique?
I learned how this works my mistake.
I was working as N.D.T. technician and was in the field performing a fluorescent dye penetrant test on a heat exchanger.
The black light we were using was obviously industrial quality and utilized its own filtering lens and transformer which tucked away nicely in its carrying case.
While looking for what should be now glowing cracks if there were any, and there was. I noticed that several of the diamonds in my wedding band were now fluorescing,
2 orange and 1 blue while the rest appeared a colorless black.
Come to find out, the higher quality diamonds were the colorless black while exposed to the black light.
Years later my step dad mentioned that there was tungsten ore in the east fork of the San Gabriel river that would fluoresce white and if
you could find the source it would be a new mother lode for someone, sadly I couldn't find an extension cord long enough.
Other than those psychedelic posters you had in your room as a teenager, what are your experiences with black lights?
Craig
