G684 is the only one typical basalt from China. This black basalt is extensively used for interior and exterior flooring tiles, paving slabs, countertops,worktops,urban furniture,landscaping elements for its unique and exquisite pattern. G684 black basalt has been widely adopted as the priority material for paving, facading, fireplace surrounds and kitchen worktops. We are professional in supplying black basalt, do lots basalt projects in West and East European countries such as Germany, Holland, Kosowo and so on. Beisdes G684, we also have Mongolia Black and other black baslat with cheaper prices. Welcome to contact us for more information. 
 
What's basalt?
Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey.
The most common uses for this rock are as aggregate in highway construction, railroad ballast, and tile. Basalt is also a major component of asphalt.
On Earth, most basalt magmas have formed by decompression melting of the mantle. Basalt has also formed on Earth's Moon, Mars, Venus, and even on the asteroid Vesta. Source rocks for the partial melts probably include both peridotite and pyroxenite (e.g., Sobolev et al., 2007). The crustal portions of oceanic tectonic plates are composed predominantly of basalt, produced from upwelling mantle below ocean ridges
The term basalt is at times applied to shallow intrusive rocks with a composition typical of basalt, but rocks of this composition with a phaneritic (coarse) groundmass are generally referred to as dolerite (also called diabase) or gabbro.