Size 12,5 x 6 x 6 cm - weight 427 grams Amazing large specimen of Silver Smithsonite In Manganese with white dots of crystalline Aragonite, magnificent rare composition, perfect purity, very shiny Silver means the color of Smithsonite. These specimens are a bit rare and stand out for their shiny silver color. From ''Hilarion'' Mine, Agios Konstantinos, Lavrio Mining District, Lavreotiki, Eastern Attica, Greece The mineral was known until the last century with the name Kalamina, a name that was also used for Hemiformite, a fact that brought some confusion. In 1802, however, the miner James Smithson distinguished him and separated him from the Hemiforms and honorably took his name. Known since antiquity in Lavrio and Thassos in Greece will be sent with a security number