Why isn't graphite shiny?

Graphite isn't shiny because its layered structure results in a matte appearance rather than a reflective one. The layers of carbon atoms in graphite can slide over each other, which creates a dull texture. Additionally, the arrangement of these layers and the presence of imperfections contribute to its lack of luster. Unlike metals, which have free electrons that reflect light, graphite's electron configuration does not support a shiny surface.