Ore

In Subrosia there are many types of Ore. Ore Chunks are very common and are found all over Subrosia. Also, there were 5 special types of Ore. They was Red and Blue Ore, which when smelted together became Hard Ore; Star-Shaped Ore, and Fool's Ore.

Red and Blue Ore
The Red and Blue Ore is found in Oracle of Seasons. When Link takes the two pieces to the Great Furnace in Subrosia, he can have them smelted together to produce the Hard Ore. When the Hard Ore is taken to the Subrosian Smithy, it will be turned into the Iron Shield.

Hard Ore
In Oracle of Seasons, the Hard Ore was one of five special types of Ore Link found in Subrosia. The Hard Ore was made when the Red Ore and Blue Ore were combined at the Great Furnace. Link took the Hard Ore and Wooden Shield to the Subrosian Smithy where the Hard Ore was combined with the Wooden Shield to make the Iron Shield.

Fool's Ore
In The Legend of Zelda: Oracle of Seasons, the Fool's Ore was one of five special types of Ore Link found in Subrosia. When the Strange Brothers took Link's Roc's Feather, they gave him the Fool's Ore. After Link got his Roc's Feather back, he placed the Fool's Ore where the Roc's Feather had been.