description Tugtupite Overview
Tugtupite is a rare beryllium aluminum silicate mineral in the feldspathoid group. It is best known from localities in Greenland, where it occurs in alkaline igneous rocks and may appear white, pink, red, or violet. Some specimens show tenebrescence, meaning that their color changes or intensifies after exposure to ultraviolet light or sunlight, and many specimens also fluoresce.
help Tugtupite FAQ
What is tugtupite?
Tugtupite is a rare beryllium aluminum silicate mineral in the feldspathoid group. It is best known from alkaline igneous rocks in Greenland.
What colors can tugtupite have?
Tugtupite can appear white, pink, red, or violet. Its color may vary between specimens and can be especially striking in translucent material.
What is tenebrescence in tugtupite?
Tenebrescence is a reversible color change caused by exposure to light. Some tugtupite specimens change color after ultraviolet exposure and gradually return toward their original state.
Where is tugtupite found?
The mineral is strongly associated with Greenland. It occurs in alkaline igneous rocks, where it formed alongside other unusual minerals.
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