We have run out of stock for this item.
| MSG1569A-104 | 1.5 oz | 2.5 x 2 x .75 |
| MSG1569B-104 | 2.9 oz | 2.5 x 1.75 x 1.5 |
| MSG1569C-104 | 5 oz | 3 x 2 x 1.5 |
| MSG1569D-104 | .5 oz | 2.25 x 1 x .5 |
| MSG1569E-104 | .6 oz | 2 x 1 x .5 |
| MSG1569F-104 | .6 oz | 1.5 x 1 x .5 |
Fluorescent sodalite from Greenland with some pieces exhibiting tenebrescence, where the stone’s color changes to a purple when exposed to UV light. Sodalite that is tenebrescent is also known as hackmanite.
Note: Tenebrescence is usually displayed when exposed to shortwave (254nm) UV light. If there is tenebrescence from longwave (365nm) UV light, these pieces are considered higher value as they are rarer.
Known in the fluorescent mineral hobby as the brightest sodalite in the world, Greenland Sodalite has become the benchmark in the UV mineral world, setting a world-class standard to which all other sodalites are compared.
Fluorescent sodalite, or hackmanite from Greenland is a rare find for collectors. You won’t find much of this material on the market. Each piece is uniquely amazing.
365nm UV light is often called "blacklight". Before the advent of longwave UV LEDs, blacklight fluorescent tubes, (the kinds used in hippie days to light up psychedelic posters) were the standard longwave UV light for our hobby. They were not very powerful but they did light a large area.
Enter 365nm UV LEDs
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.
