Basalt flagstone lies somewhere between the shades of dark grey and charcoal grey. A flamed top and thermal finish give the surface a unique texture unparalleled to any other natural stones. The durable and fairly consistent stone is an ideal choice to pave the interior and exterior surroundings. Color Composition: Black, Charcoal Stone Type: Basalt Stone Finish: Non-Tumbled Product Finish: Sand Base Application Areas: Walkways, Pathways, Patio, Lawn, Backyard, Front Yard