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!

Selenite on Halite, Phosphorescent - Paracas, Ica Dept. Peru

Contributed by: Mark Cole
Date: Apr 3rd, 2026
Locality: Salinas de Otuma (Las Salinas; Salinas de Paracas), Otuma village, Paracas District, Pisco Province, Ica, Peru (See on Mindat)

Description:
Originally posted by Mark Cole on Nature's Rainbows in 2016.

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Afterglow after exposure to shortwave UV light.
Afterglow after exposure to shortwave UV light.
Normal light.
Normal light.
Normal light. Specimen size image compared to a US dollar bill.
Normal light. Specimen size image compared to a US dollar bill.

Summary of luminescence responses:

Gypsum var. Selenite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow
  • Afterglow after exposure to Shortwave (254nm Lamp/Mercury) UV light: Green
Halite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red

FMDB Home Page
Submit a new specimen!
My Collection