Quartz Crystals on Calcite - San Antonio Mine, Chihuahua, Mexico
Small delicate crystals of bright green fluorescing quartz are peppered around a matrix of calcite on this striking specimen.
Read more
Sodalite (Hackmanite) - Greenland
$600.00 USD
$750.00 USD
SKU: MSG1485
Weight and Dimensions
Shipping and Delivery
*Note: Please make sure to right-click and print (or save) ID card located in the photo gallery for your records*
A museum quality piece of deeply tenebrescent hackmanite. Brightly fluorescent under all wavelengths, the hackmanite also displays some phosphorescence which is unusual. Most areas of green fluorescence is the typical uranyl activated mineral found on Ilimaussaq rocks. First it’s very tenebrescent, darkening to a purplish hue after exposure to shortwave UV light. The striking tenebrescent purple hue against the white matrix provides a perfect example of tenebrescence. Combine this with the size of the specimen and you’ve got a superb piece for a collection.
The animation below shows the extreme color change (tenebrescence) after exposure to longwave and shortwave UV.
"Red" Sodalite (Hackmanite) - Deeply Tenebrescent Greenland Mineral
Red sodalite is named for the color it takes on when exposed to sunlight; it is nicely tenebrescent under longwave UV. Under shortwave UV the color deepens, in seconds, to almost black in some areas.
Read more
A Short Study on Rare Occurrences of Apatite from the Ilimaussaq Complex, Greenland
Rarest of the rare from Greenland - apatite has only been observed in a handful of pieces over the decade+ we have been exploring Greenland. Blue apatite crystals fluorescing under UV.
Read more