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!

Tugtupite and Polylithionite, on Albite, Greenland

Contributed by: Mark Cole
Date: Apr 7th, 2026
Locality: Ilímaussaq complex, Kujalleq, Greenland (See on Mindat)

Description:
A little patch of chkalovite in lower right middle.

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

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Tenebrescence after exposure to shortwave UV light.
Tenebrescence 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:

Tugtupite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Polylithionite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White

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