“Black Tourmaline from Castro Daire (very rare). Vasco Trancoso collection and photo. Size: 6,5 X 0,8 X 0,7cm. A piece from 1960´s with a textbook termination (see child photo). Very good crystalization from an old local.”

“Black Tourmaline from Castro Daire (very rare). Vasco Trancoso collection and photo. Size: 6,5 X 0,8 X 0,7cm. A piece from 1960´s with a textbook termination (see child photo). Very good crystalization from an old loval. Castro Daire is in Viseu District. ”