Basalt is a common mafic extrusive volcanic rock. It is usually gray to black and fine-grained due to rapid cooling of lava at the surface of a
planet. We supply basalt in polished, flamed, honed and bushhammed finishing. Sizes are mainly in tile sizes, However,basalt is not easy
to make super thin at 10mm. Basalt is widely used for outside floor and wall of building and garden, because of it is lighter than granite.
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