Tugtupite in Analcime, Taseq Slope, Ilimaussaq Complex, Greenland

Contributed by: Chris Clemens
Date: Apr 24th, 2026
Locality: Taseq Slope, Ilímaussaq complex, Kujalleq, Greenland (See on Mindat)
Size: 5.2 x 4 x 11 cm
Weight: 201 g

Description:
Bubble gum pink colored tugtupite in a white analcime matrix, from the Taseq Slope, Ilimaussaq Complex, Narsaq, Greenland. This specimen shows a beautiful multi-wave UV response. Under shortwave, the tugtupite fluoresces a deep, rich, cherry red color. Some of the analcime is uranyl-activated and shows areas of green fluorescence. There is also a minor unknown mineral present that shows as limited areas of blue fluorescence. Under longwave UV the tugtupite shows a dimmer, orange response, and the unknown blue fluorescing material is a bit brighter.

This fine specimen was collected by notable authority on the fluorescent minerals of Greenland, Mark Cole, on one of his many Greenland expeditions.

Originally posted by Chris Clemens on Nature's Rainbows in 2016.

Fluorescence under shortwave UV light.

Fluorescence under longwave UV light.

Fluorescence under fullwave (LW + MW + SW) UV light.

Normal light.

Fluorescence under shortwave UV light. Side 2

Fluorescence under longwave UV light. Side 2.

Fluorescence under fullwave (LW + MW + SW) UV light. Side 2

Normal light. Side 2.

Summary of luminescence responses:

Tugtupite (Mindat) (RRUFF)

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