Branik small square blue 4
This Branik is made of Brazilian quartzite - azul macaubas. Its age is estimated to be around 1.2 billion years. This quartzite belongs to the Espinaço (Precambrian) stratigraphic group. The mining sites are located west of Macaúbas and Boquira in the Serra da Vereda region (Bahia state).
Dimensions: 13 x 13 cm