Sodalite (Yooperlite Rock) - Greenland
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Sodalite from Greenland that has been worn and tumbled by water and glacial activity.
Similar to the recently popular Yooperlite rocks, Greenland has its own Yooperlite rocks (but we just call them sodalite). Glaciers eroded sodalite out of the Ilimaussaq Complex and carried them towards the ocean, grinding and polishing all the way. Many were deposited in the glacial moraines near the village of Narsaq. Lots more can be found on the pebble beaches in the fjords cutting through the complex. The sodalite is brightly fluorescent under LW (365nm).
When split, many exhibit a strong tenebrescence after exposure to shortwave (SW) UV (see animation below). This is (so far) a Greenland exclusive. Minerals include sodalite, arfvedsonite, aegirine, eudialyte, and probably a few others, all in a syenite type rock.