⟪⟪ Ultraviolet induced visible fluorescence - rocks & minerals (IV) ⟫⟫
Larger rocks found in nature.
[ normal || UVIVF ] ⇛ (2019-09-14)
[ normal || UVIVF ] ⇛ (2019-10-11)
[ normal || UVIVF ] ⇛ (2019-10-11)
[ normal || UVIVF ] ⇛ I suspect this rock to be of man-made origin, but it has a very nice color nevertheless (2019-10-11)
[ normal || UVIVF ] ⇛ A combination of fluorescent rocks, lichens and mosses (2019-10-11)