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!

Agrellite - Kipawa Alkaline Complex, Québec, Canada

Contributed by: Chris Clemens
minID: E3G-XN1
Date: Apr 27th, 2026
Locality: Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada (See on Mindat)
Size: 7.9 x 5 x 9.3 cm
Weight: 358 g

Description:
Massive, light grey colored, crystalline agrellite from the Kipawa Alkaline Complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada. Fluoresces lavender pink under shortwave UV, brighter lavender pink under midwave UV.

Agrellite exhibits a brief intense phosphorescence (BIP) when quickly removed from under a shortwave (or midwave) UV light. The color, unlike Franklin calcite, is a yellowish orange

Originally posted by Chris Clemens on Nature's Rainbows in 2017.

Fluorescence under midwave UV light.
Fluorescence under midwave UV light.
Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Agrellite (Mindat) (RRUFF)

  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Pink
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Pink
  • Afterglow after exposure to Midwave (305nm Lamp/Mercury) UV light: Yellow