Fluorescent Mineral Database

Tugtupite, Sodalite, Chkalovite, Ussingite, Polylithionite - Ilimaussaq, Greenland

Contributed by: Mark Cole
Date: Mar 26th, 2026
Locality: Tugtup Agtakôrfia, Tunulliarfik Fjord, Ilímaussaq complex, Kujalleq, Greenland (See on Mindat)

Description:
Tugtupite formed as veining around a crystal of chkalovite (blue/green) (tugtupite replaces chkalovite). On a mixed sodalite/ussingite matrix (orange) with yellow, fluorescent polylithionite crystals.

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

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

Summary of luminescence responses:

Chkalovite (Mindat) (RRUFF)

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

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