Gold

Gold was a pure precious metal that was used in Faerûn as the baseline of most currency. Despite its high value it was fairly commonly found throughout Toril.

Description
Gold was a soft, malleable and exceptionally conductive metal. It was resistant to nearly all acids in the Realms, with aqua regia being one of the only acids known to melt it.

Worth
Most coins in Faerûn worked off of the silver and gold standard, with copper pieces (cp) being worth 1/100th of a gold piece (gp) and silver pieces (sp) being worth 1/10 of a gp. Electrum coins were worth 1/2 of a gp, and platinum coins were worth 10 gp. A standard gold piece (gp) weighed, so 50 coins weighed about. Each piece was typically a flat disk 1$1/10$ or in diameter and $1/undefined$ or  thick. Any less than that and they were considered by most to be "shaved" and worth less than newly minted coins.

The metal was valuable to many artisans for its malleability and aesthetic qualities.

Uses
Gold was prized by many wizards for its magical properties. If refined and treated with the right magical processes, gold could become as hard as steel and used to forge effective armor and weapons, which could hold a number of enchantments, even those that conflicted one another. While it offered significant protection against fire and acid, golden armor was twice as heavy as steel and more encumbering.

Gold was specifically used in the crafting of shoonrings that had multiple magical properties.

Gold was favored by the gods Abbathor, Geb, Hanali Celanil, Thard Harr, Ubtao, and Vergadain and seen as a sign of their blessings.

Waukeen, the goddess of wealth and trade, was known as Our Lady of Gold, and was said to wield a cloud of gold coins as a weapon.