Hand-shaped from 20g half-hard wire, 8mm, and 6mm gemes.

Silver Filled Earwire: Copper wire is coated in fine silver. Then tempered to harden.

Alloy Tree of Life Medalion 

100% Natural Gemstone

Guide to metals:

Sterling Silver: Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. 

Fine Silver: Fine silver is simply pure silver. It is 99.9%, or .999 pure.

Copper: 99.9% Natural Copper

Alloy: Alloys are mixtures of various elements. Alloys can be a "base" (less costly) metal, like brass

Please know that both copper and silver are hypoallergenic natural metals