The Solar System necklace is a great mix of delicate and chunky rocks and other matter just like the real solar system. In order of appearance 
Mercury: Pyrite
Venus: wood
Earth: Sodalite with a tiny chalcedony moon
Mars: wood
Jupiter: wood
Saturn: wood
Uranus: Amazonite
Neptune: Sodalite
On coated antique bronze wire with a brass clasp and extender chain. Approximately 19.5-22.5" long