Fluorescent Mineral Database

A new secret project! Trying to create a nice Fluorescent Mineral Database (FMDB), which would be searchable by mineral, locality, and luminescence properties. Also making it easy for people to contribute with their own specimens!

Calcite Crystals in Fossil Clam - Lake Edwards, Virginia Beach, Virginia

Contributed by: Mark Cole
Date: Mar 16th, 2026
Locality: Virginia Beach (City), Virginia, USA (See on Mindat)

Description:
Originally posted by Mark Cole on Nature's Rainbows in 2015.

Fluorescence under longwave UV light.
Fluorescence under longwave UV light.
Afterglow after exposure to longwave UV light.
Afterglow after exposure to longwave UV light.
Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

  • Fluorescence under Longwave (365nm LED) UV light: White
  • Afterglow after exposure to Longwave (365nm LED) UV light: Green
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White
Fossil (Mindat) (RRUFF)
  • Fluorescence under Longwave (365nm LED) UV light: White

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