Some possible ore types from real world or previous ES games:
Iron
Copper
Tin
Mythril
Ebony
Glass
Stahlrim
Adamantium
Other possible crafting materials that aren't specifically ores but may have been counted as such:
Leather
Fur
Bone
Dragonskin/Dragonscale
Also, crafting could combine or treat these ores to form new materials such as:
Bronze
Steel
Daedric
What do you guys think? Would you like to see these or other ores in the game? What do you think will make it? Discuss!
EDIT: Added adamantium to the list.