Magmalite Soil Conditioner is a natural lightweight volcanic aggregate commonly used to improve the physical properties of root zone soils, native soils or imported topsoil.
Additionally, it is combined with varying amounts of other soil components (sand, organics, etc.) to create engineered soil media for specialized applications including green roofs, rooftop gardens, on structure plantings and bio-retention media for storm water.
Utah Topsoil & Hauling Co. 