BASALT
This is the most solidified lava stone. Charcoal grey in colour this igneous rock has fine granular detail. Basalt is most abundant at the earths crust and makes up most of the ocean floor.

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Charcoal Grey
200x400mm, 400x400mm
Honed
Density 2.7-2.9g/cm³. Porosity 0.3-4.0%. Sealing recommended