Beautiful plate of riveting blue smithsonite from the great classic location of Laurium, Greece. These blue smithsonites came out many years ago and were the best blues available in the 1800s and early 1900s, prior to the Kelly mine material coming out. They are still highly desired for their soft color and old world history. Interesting layering of the smithsonite can be observed along the edges of the piece. Old mid-1900s Schortmann's Minerals and Hauck collection labels come with piece. 9.1 x 6.1 x 3.2 cm