This lithological type occurs in the outer ring of circular sub-volcanic structure of Santa Eulalia, which consists essentially of rocks chemism through the basics. This is a massive late to postectónico relative to orogeny Hercínica.
Black Stone Cobbles Color
“Igneous rock tone dark gray, fine grained to medium, and horneblêndica biotítica. The black stone is a dark grey coloured granite with medium grain and a quite uniform background. It presents a dominant dark grey colour with also black areas. In terms of hardness, this is a hard natural stone. Its variations depend on the amount of grain and background uniformity. Blackrock is a type of granite with an interesting market in Portugal, but with a modest market abroad. It is extracted by some quarries with small to medium dimension. There are considerable reserves for future extraction. The blocks extracted can have any size. In the planet granite this is the stone color most searched, typically for kitchens slabs and stone tiles. Cobble together this granit with others granite types results in wonderful buildings. You can black granite paving your home or your patio. We stone manufacturers always try to extract more of this blackgranite since it is easily sold. This blackston coloured granite accepts well most types of finishings. But the type of finishing that has given the most credit to this stone is definitely the polished one. We also recommend flamed or bush-hammered ones. If the target is cobblestone this is definitely a good option. If you need granite suppliers for this type of granite you can count on us.„