This rich black igneous rock is characterized by a medium grain size which displays a subtle patterning and depth of color when honed, polished or water jetted. Basalt is formed from volcanic action and lava flows, which contribute to its uniform and consistent appearance. Because basalt is unique in how it is harvested, it limits the sizes available for fabrication.
Pavers, treads/risers, interior veneers, wall caps, coping and cubic fabrication.
Most Popular Finishes
Honed or Polished: Countertops
Bush Hammer, Adze, Thermal, Sandblast: Pavers, veneers, stair treads, architectural details
Mushroom: Exterior veneer
Waterjet: Water features, paving
Standard Test Data
Density (lbs/cf): 185.38
Water Absorption %: 0.61
Compressive Strength (Wet) PSI: 17,215
Compressive Strength (Dry) PSI: 16,382
Flexural Strength (Wet) PSI: 6,034
Flexural Strength (Dry) PSI: 5,366