Gemmy Dark Green Sodalite from Greenland

Contributed by: FMS Admin
minID: NFN-C58
Date: May 12th, 2026
Locality: Kangerluarsuk Fjord, Ilímaussaq complex, Kujalleq, Greenland (See on Mindat)
Size: 5.3 x 3.2 x 7.3 cm

Description:
Gemmy green sodalite from Kangerlussaq, Ilímaussaq complex, Narsaq, Kujalleq, Greenland. In the first image, the specimen is shown fluorescing under shortwave UV.

This type of sodalite has a much weaker fluorescence than other sodalite varieties from Greenland but has a very beautiful color in daylight. The tenebrescence of the white areas contrasts beautifully with the dark green gemmy areas.

Originally posted by Frédéric Messier Leroux on Nature's Rainbows in 2022.

Fluorescence under shortwave UV light.

Fluorescence under longwave UV light.

Tenebrescence after exposure to shortwave UV light.

Normal light.

Fluorescence under shortwave UV light. Side 2

Fluorescence under longwave UV light. Side 2.

Tenebrescence after exposure to shortwave UV light. Side 2.

Normal light. Side 2.

Summary of luminescence responses:

Sodalite (Mindat) (RRUFF)

• Fluorescence under Longwave (365nm LED) UV light: Orange
• Fluorescence under Shortwave (255nm LED) UV light: Blue
• Tenebrescence after exposure to Shortwave (255nm LED) UV light: Purple