Each voxel is made of one type of material. Materials have various physical properties, including:

Conductivity

Corrosion Resistance

Density

Ductility / Malleability

Elasticity / Stiffness

Fracture Toughness

Hardness

Plasticity

Strength, Fatigue

Strength, Shear

Strength, Tensile

Strength, Yield

Toughness

Wear Resistance