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UV MineralsFluorescent Psuedomorph / Epimorphs

1st Mar 2016 18:00 UTCDennis McCoy

I just purchased this Siderite epimorph of Calcite from Aggeney's Mine, North Cape Province, South Africa. As a matter of course I shined my 405nm laser on it and got a strong fluorescent reaction. I got the same, although weaker reaction with my LW UV light.

the specimen in normal light

timed exposure with LW UV and unfocused 405nm laser (color is off)

This photo is close to the true color (fluorescence).

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