Copper

Copper is a reddish-colored metal, with a high electrical and thermal conductivity (among pure metals at room temperature, only silver has a higher electrical conductivity). Copper may well be the oldest metal in use, as copper artifacts dating to 8700 BC have been found copper was associated with the goddess Aphrodite/Venus/Hathor in mythology and alchemy, owing to its lustrous beauty, its ancient use in producing mirrors, and its association with Cyprus, which was sacred to the goddess.
The elemental alchemy symbol for copper is also the planetary symbol for Venus. As such, this symbol embodies such characteristics as love, renewal, balance, and artistic creativity.