Do Petoskey Stones Glow?
Kevin Cole, Associate Professor of Geology at Grand Valley State University, Said It's Not Unheard of for Certain Rocks to Glow Under Certain Light, but It's...
Kevin Cole, associate professor of geology at Grand Valley State University, said it's not unheard of for certain rocks to glow under certain light, but it's not common. ... Petoskey stones are fossilized corals unique to the northwestern part of Michigan's Lower Peninsula. Some Petoskey stones also fluoresce, he said.
What rock glows under UV light?
The most common minerals and rocks that glow under UV light are fluorite, calcite, aragonite, opal, apatite, chalcedony, corundum (ruby and sapphire), scheelite, selenite, smithsonite, sphalerite, sodalite. Some of them can glow a particular color, but others can be in a rainbow of possible hues.
What stones naturally glow?
- Autunite. The mineral autunite fluoresces a yellow-green color. ...
- Fluorite. The mineral fluorite can fluoresce with many colors, blue being the most common, but shades of yellow, green, white, red and purple also occurring. ...
- Calcite. ...
- Scapolite. ...
- Hyalite.