Fluorescent rock hunting on Lake Erie. 🔦
Hello fellow Rockhounds! #rockhound #naturelover #nature #explore #geology
Hello fellow Rockhounds! #rockhound #naturelover #nature #explore #geology
Comments
Also, what Terrazzo? Not familiar. Excuse my ignorance.
If you notice, I didn't say "never" find that far south, just that you don't typically. I've been to the Coldwell Complex on the North Shore and those ones you can find as far south as southern Lake Michigan.
The ones we find on Lake Ontario and Erie are likely from MSH and/or Bancroft. The crystal structure is completely different than the ones found below Coldwell and more like MSH/Bancroft
The alkaline complex in Arkansas has sodalite and I’ve collected about 100lbs down there.
I use all 3 UV lights: LW, MW, & SW.
If you’re referring to the sodalite, I use LWUV which is 365nm.
395nm is too low on the on UV spectrum to excite the electrons to fluoresce orange.
In the Great Lakes area, most rocks fluoresce under LW (365nm).
Illuminated with 365 nm UV.
I’ve seen some really cool displays over the years. Engenious Design has excellent UV options for displays.
Blue💙 is feldspar
Yellow💛 is scapolite
Orange🧡 is sodalite
Green💚 is uranyl ions
All under LW UV🔦