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    Ultraviolet induced visible fluorescence - rocks & minerals (I)    

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF || phosphorence ] ⇛ This piece had some phosphorence as well, meaning it was still emitting light for a short while after turning of the UV-light. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF || phosphorescence ] ⇛ Another rock displaying phosphorescence. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF ] ⇛ A rock. (2017-09-20)

 

[ normal || UVIVF || slow phosphorescence || fast phosphorescence ] ⇛ This rock had two types of phosphorescence. One yellow kind that took a longer time to quench, and a red kind that quenched really quickly. The red kind was very difficult to take a picture of, and this is in fact a combination of about twenty photos, each with a different part of the rock actively emitting light. (2017-09-20)