Tourmaline (44.45 carats) (ex Rolando Gioia Collection)

Item Description

This is essentially a reference specimen of Tourmaline from the famous Pederneira Mine. The piece features trio of lustrous, gemmy, blue-green prisms, but unfortunately they are all contacted. A little bit of white Albite and purple "Lepidolite" make for a nice touch, but it's still just a reference piece. Specimen weight is 44.45 carats. From the collection of Rolando Gioia (a contributor to new definitive book on Brazilian minerals: "Minerais e Pedras Preciosas do Brasil").