Sentenced to Prism (Commonwealth series)

Blurb

Sentenced to Prism is a science fiction novel written by Alan Dean Foster, and is a stand-alone entry in his Humanx Commonwealth series of books. Like many of his books, Foster creates an extraordinary world that he tries to make unlike anything ever seen by his readers by creating a primarily silicon-based planet with almost everything seeming to be made from crystals, glass, and reflective surfaces.