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.
Monday, April 18, 2011
Fluorescent Calcite from Kentucky
Longwave ultraviolet light fluorescent calcite from Hardin County, Kentucky. I need to figure out how to filter out the visible purple light though. Image taken with 2.5 second exposure.''
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