These earrings are models of a carbon molecule known as a Buckyball. Buckyballs get their name from their resemblance to the famous geodesic dome designs of Buckminster Fuller. This particular molecule is made of eighty carbon atoms. Buckyballs of various sizes are created naturally in flame and by lightning strikes, mostly with sixty atoms or more. Despite their natural origins, Buckyballs were unknown until 1985, when a team of chemists created and detected them in the laboratory by hitting a block of graphite with a laser. The team won the Nobel Prize in Chemistry in 1996 for their discovery!
These earrings are 25 mm (1") long and 19 mm (~3/4") across. (The real molecule is about one nanometer across, so this model is made at about twenty million times scale!) There are no earwires in the model; earwires or studs can easily be added with a jumpring.
We have several other versions of Buckyballs in our shop too, as well as carbon nanotube pendants.