Cinza Escuro Roriz
November 6, 2018 4:05 pmRock with fine grain. Holocrystalline sample, phaneritic, mesocratic, with grayish blue shade. Homogeneous granular texture. Good cohesion. Does not show... View Article
Rock with fine grain. Holocrystalline sample, phaneritic, mesocratic, with grayish blue shade. Homogeneous granular texture. Good cohesion. Does not show... View Article
Blueish-grey to dark grey homogenous slaty schist, compact, fine grained and presenting clear schistose cleavage.