A blog of the photographs of Michael Popp who resides in an area around Louisville, Kentucky, USA. Click on the pictures to make them larger.
Wednesday, April 20, 2011
UV Fluorescent Fluorite from Illinois
Most minerals that I find that fluoresce under longwave ultraviolet (UV) light tend to be white calcite. This mineral is an exception being yellow fluorite found in southern Illinois. One side of reacts to the light by producing a yellowish lemon colored glow.
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