Tourmaline, Herderite - Pederneira Mine, Sao Jose da Safira, Minas Gerais, Brazil
 
 Aesthetic paragenesis of gem quality tourmaline with 2.2 cm herderite twin on lepidolite. The 2.3 cm long tourmaline is immaculate and has the characteristics typical of the site  light blue color. Specimen with a particularly beautiful build up.