quite equigranular grain with rounded edges, bright faint concentric zonation microveined in the center (spot 30.1, Tab. 1), and brighter and homogeneous close to the borders
Autores
Ciro Teixeira Correia http://lattes.cnpq.br/1315778332459754 | Silvano Sinigoi | Vicente Antonio Vitorio Girardi | Maurizio Mazzucchelli | Colombo C. G. Tassinari | Tommaso Giovanardi
