Fossilized Clam (Calcite) from Ruck's Pit, South Florida
Contributed by: Mark Cole
Date: Mar 27th, 2026
Locality: Rucks\' Pit, Fort Drum, Okeechobee County, Florida, USA (See on Mindat)
Description:
Similar fluorescence LW and SW. Phosphorescent after exposure to LW and SW (not shown).
Originally posted by Mark Cole on Nature's Rainbows in 2015.
Summary of luminescence responses:
Calcite (Mindat) (RRUFF)
- Fluorescence under Longwave (365nm LED) UV light: White
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White