Tourmaline (multicolor) (ex Rolando Gioia Collection)

Item Description

A single prism of multicolored Tourmaline featuring a completely opaque black (Schorl) cap which grades into a thin but strong greenish-blue band, then immediately into a nearly colorless zone, and then the majority of the prism is "watermelon" Tourmaline with a pink center surrounded by a green exterior. No damage, and very attractive for a thumbnail sized Tourmaline, as there is a lot going on in a 2 cm prism. From the collection of Rolando Gioia (a contributor to new definitive book on Brazilian minerals: "Minerais e Pedras Preciosas do Brasil").