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, Chkalovite, Beryllite, from Kvanefjeld, Greenland

Contributed by: Mark Cole
Date: Apr 15th, 2026
Locality: Kuannersuit Plateau (Kvanefjeld), Ilímaussaq complex, Kujalleq, Greenland (See on Mindat)

Description:
From the Howie Green collection - a superb example of gem tugtupite, with green fluorescing chkalovite and gray/blue fluorescing beryllite. From the famous gem tugtupite mines on Mt. Kvanefjeld, Ilimaussaq Complex, Greenland

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

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.

Summary of luminescence responses:

Tugtupite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Chkalovite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (255nm LED) UV light: Green
Beryllite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue

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