Basalt obelisque.Size (hxlxp): 6x2x2 inches. Weight: 400 pounds.Origin: Louxor (Egypt)
Basalt rock is volcanic extrusive black. It usually consists of a fine-grained to rapid cooling of the lava on the Earth's surface. The parties in the crust of oceanic tectonic plates are composed primarily of basalt, produced from the cable mantle below the ocean ridges. "The black stone" is the volcanic rock, the most widespread thanks to his qualities of hardness and impermébilité; it is used both in the railway construction, in construction, and more recently in the production of statues in some countries.