set of various rough green stones with names

alexandrite amazonite amphibole aventurine background beryl chrysolite chrysopal collage collection cut cutout description granite green hornblende idocrase iridescent iron isolated lavroffite lavrovite mineral name natural nephrite olivine opal out phonolite prase prasem prasiolite pyrite raw rock rough sample schist set skarn specimen stone tactite tinguaite unpolished various variscite vermarine vesuviane vesuvianite white