A Shiny Surface Reflects Less Light Than A Matte Surface

Everything reflects light, it's the how that makes a difference. A new concept that i learnt says that the reflection is due to the scattering of light by electrons in the material. I've got my head around this yet something that bothers me is how do shiny surfaces like a mirror or reflective surface like silver or platnum reflect almost all of the light that it receives and yet certain other metals don't. Gloss follows the law of reflection which states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.