...talking about fluorescence...
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...talking about fluorescence...
This is a calcite cleavage (calcite breaks naturally into rhombohedral pieces). The first shot is in normal light, the second under longwave ultraviolet light. Lovely pink colour.
Last edited by crocoite on Sat Feb 17, 2007 7:13 pm, edited 1 time in total.
Interesting photos Steve , both that of the Aragonite and this one of the Calcite. I have yet to try and subject lichens to ultraviolet, I have read that they too display different colors by having absorbed minerals from the substrate to which they cling and from some airborne particles aswell, I think.