Lavrion Smithsonites with this classic and vibrant blue color have long been a goal of sophisticated collectors to obtain, based on old samples from the late 1800s and early 1900s. In particular, the rare blue color was always a desired target, even though specimens only came out of museums until a few very small pockets found in modern times. This lovely Smithsonite, consisting of thick layers culminating in a pronounced 4.8 x 2.8 cm cluster of botryoids, has an attractive, light-blue color that is reminiscent of the great Kelly Mine (New Mexico) specimens known throughout the collecting world. When backlit strongly, you can see that growth banding patterns dramatically appear and adds fascination to beauty in this quality piece. Partially coating or intergrown with the Smithsonite is a thin layer of white Calcite that fluoresces orange-red. Collected in 2019 from this fabled and historic district.