Calcite with blue phosphorescence

[pcktfullofokenite]

I have a Youtube video demonstrating blue phosphorescence from Mexican calcite. I've collected calcite in West Virginia that sometimes glows blue but nothing like this material. I always buy a piece when I can find it at a show. Normally the phosphorescent area will be pink and will glow in shortwave UV. The sample in I have in the video is transparent but does have slight pinkish area in it in regular light. Enjoy the video.

www.youtube.com/watch?v=jiFcXpPKwaE