Tugtupite and Chkalovite - Kvanefjeld, Greenland

Contributed by: Mark Cole
Date: Mar 25th, 2026
Locality: Kuannersuit Plateau (Kvanefjeld), Ilímaussaq complex, Kujalleq, Greenland (See on Mindat)

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

Fluorescence under shortwave UV light.

Fluorescence under midwave UV light.

Fluorescence under longwave UV light.

Normal light. Red gem tugtupite.

Summary of luminescence responses:

Chkalovite (Mindat) (RRUFF)

• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green

• Fluorescence under Longwave (365nm LED) UV light: Orange
• Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Pink
• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red