It could be both. Rust is the result of the oxidation of metallic Iron. if exposed to air and water the rust can be extensive over the exposed surface and if the surface has been exposed for a long time the rust can be quite thick, intensive.
Molarity is an intensive property.
Length is an extensive property.[ An extensive property of a system is directly proportional to the system size or the amount of material in the system, like mass and volume, but not: density or viscosity]
Height is an intensive property because it does not depend on the amount of the substance present. It remains the same regardless of the quantity.
Texture is an intensive property, because the texture of a material does not change dependent on the amount of the material that is measured.
Extensive
is radioactivity extensive or intensive or chemical property
Intensive
intensive
Intensive
intensive
extensive
intensive
intensive
intensive
Intensive
Intensive/extensive are not adequate terms for the age.
Sulfur is an element that has both extensive and intensive properties.