All-Wave Triple UV LED Torch: a favorite new toy to explore mineral fluorescence and phosphorescence- this hand held device delivers three different frequencies in the ultraviolet spectrum: 255nm from UVC, 310nm from UVB and 365nm from the UVA range. UVC offers the most energetic photons and we get bright orange fluorescence in calcite, bright green from willemite, and phosphorescent after glow, including a ghostly blue in a calcite rhomboid that fades after the lamp is switched off. Under UVB w
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All-Wave Triple UV LED Torch: a favorite new toy to explore minera…
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