Sodalite - Greenland

$3,200.00 USD
SKU: MSJ0079
Weight and Dimensions

2lb 4.3 oz, 4.5" x 3.5" x 3"

Shipping and Delivery

Free Shipping
USPS Priority Mail
2-3 Business Days

an identification card showing minerals

Brightly fluorescent both SW and LW. Most areas of green fluorescence is the typical uranyl activated mineral found on Ilimaussaq rocks. The material from this locality is probably the winner in the color-change department. Brightly fluorescent both SW and LW - the natural color deepens to a light pink upon exposure to LW UV (or obscure sunlight) and to a deep purple (almost black) after exposure to SW.

fluorescent sodalite hackmanite

Upon exposure to SW UV the sodalite on this piece changes color to a deep purple - in seconds! Expose it to a bright white light (UV free halogen or LED spotlight held directly on the rock) and it reverts back to its natural color almost immediately.

The animation below shows the color change (tenebrescence) after exposure to longwave and shortwave UV.

An animation showing tenebrescence

fluorescent mineral specimen of tugtupite, sodalite

Common Questions About Fluorescent Minerals – An FAQ Guide

Fluorescent minerals can be fascinating to those who discover these hidden treasures and they often raise various questions. Here are some common questions related to fluorescent minerals.
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purple fluorite crystals


Fluorite often times has bright fluorescence under ultraviolet light, revealing bright colors that range from purples and blues to brilliant greens and pinks. Anyone with a fluorescent mineral collection probably has a piece of fluorescent blue fluorite, the most common fluorescent color for this mineral.
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calcite, hydrozincite, aragonite, diopside specimen under UV light

Long Lake Zinc Mine - Ontario Canada

The sun was slowly setting so we made dinner and relaxed a while (amazing how slowly the sun sets when you're waiting for it). Once it got dark collected started in earnest. The first thing you notice is the bright blue hydrozincite everywhere on red calcite. All of the small rocks glow. We proceeded to check out the large boulders laying around on the surface and quickly determined that dozens of prior collectors had done the same. That's why they're still lying around.
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