Beautiful Earth tone multilayered necklace.  Picasso Jasper, Green Jasper/agate/golden sandstone beads, copper potato-shaped pearls, antiqued copper plated elements
 
Pendant: Picture Jasper or Spiderweb Jasper
Green squares: Green Jasper or Rainforest Jasper (Rhyolite)
Pale green ovals: Prehnite or Green Aventurine
Swirled orange/cream: Agate (possibly carnelian or dyed agate)
Metals: Copper or antiqued copper alloy