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This colorful and bright specimen comes from remote Taseq Slope in the Ilimaussaq Complex of Greenland, where you will find the highly sought-after “Fantasy Rock.” Found only in this specific area, these rocks are known for their intense array of colors and glow under UV light.
This piece features rich, heavy blue analcime coverage with tugtupite that fluoresces a deep cherry red under shortwave UV and a salmon-orange under longwave. The delicate veining on this material clearly illustrates tugtupite replacing chkalovite and offers up fascinating “eye” patterns.
Chkalovite shows up in green under midwave and as the rarer, pearly white variety, forming eye-like patterns surrounded by tugtupite. You’ll also findminor orange fluorescent sodalite and streaks of black arfvedsonite running throughout the matrix.
Both tugtupite and sodalite glow brightly under longwave UV. The specimen also displays some tenebrescence, adding another layer of visual interest depending on light exposure.
Fantasy Rock typically contains a mix of tugtupite, sodalite, chkalovite, and analcime—this specimen has them all. It's a great example of the kind of mineral combination that makes this location so unique and collectible.
First, an animation showing the difference between the UV flashlight we recommend (365nm filtered UV flashlight) versus unfiltered 395nm UV flashlights we see many folks carrying around at shows. So. much. visible purple light. We selected a bunch of rocks as a demonstration. Took pictures of them under his flashlight without the filter and then with the filter.
A major component of rock collecting (for us) is simply getting out in nature. A buddy dragged us out to a very remote area here in middle Tennessee to hunt for fluorescent green agate. Since we consider ourselves pure "Glow Hounds" we weren't anticipating any glow rocks, just the beauty of the area, but we brought our UV lights anyway.
