Pyrite

Pyrite is a mineral found on Azeroth. Its bright golden color sometimes leads it to be known as fool's gold.

Deep inside the Tirisfal Glades, at Venomweb Vale, a rock of fool's gold marks the exact location where Aegwynn used to meet with the members of the Council of Tirisfal, accidentally transformed by Magna Scavell's apprentice Falric centuries ago.

The forces of Ulduar used liquid pyrite as a combustible fuel source.

Pyrite ore can rarely be found in Uldum, the Twilight Highlands, and Tol Barad. Some can also be found in the Thousand Needles as a quest item. Both Alliance and Horde tried to dupe the local centaur with fool's gold to acquire their oil drilling rights.

Pyrite is mined from Pyrite Deposits and Rich Pyrite Deposits (Both require 525 Mining). Pyrite is found only in the highest tiers of Cataclysm zones, those being the Twilight Highlands and Uldum (more frequent in the former). Rich Pyrite Deposits are only found in Tol Barad (both in the peninsula and the battleground area). Both types are rare spawned nodes off Elementium, though they appear to occur more frequently than previous rare nodes.

• In real life, is an iron sulfide. It has little practical use in modern times, though it still remains popular in jewelry due to its shine.
• The Pyrite Ore's icon is rainbow colored while the actual bar and nodes are both gold. This is presumably made to differentiate it from the actual Gold Ore item. In liquid form, pyrite appears to turn blue.
• Pyrite has also been called "Baked Potato" or "Baked Potarite" or other variations, due to the node's resemblance to a baked potato.

• Fool's Gold is an item that can summon a node of mineral alongside a few kobolds
• Fool's Gold (poor item) is sometimes hoarded by dragons for its shine
• Needles Pyrite Ore Chunk
• Pallet of "Gold"