An artificially grown
bismuth crystal, illustrating the stairstep crystal structure, with a 1-cm cube of bismuth metal for comparison. The iridescent surface here is a very thin layer of
oxidation.Photo:
Heinrich Pniok
An artificially grown
bismuth crystal, illustrating the stairstep crystal structure, with a 1-cm cube of bismuth metal for comparison. The iridescent surface here is a very thin layer of
oxidation.Photo:
Heinrich Pniok