What do you use ore for?? i have plenty of gold and silver nuggets, and im afraid of selling them. Maybe some blacksmith ask me for them for a quest? or some npc would make items from them?? anyone knows something?

Well I've done most of the quests, and have never needed them for anything. I do keep some samples of most objects in the game in case I'll need them sometime, though.

so far i have found no use of it.. other than the merchants paying good money for it!

I found a use for them! buy a silver bowl and fill it in with gold nuggets, do the same with the silver nuggets but with a clay (or similar color) bowl. Its sort of the classical "bowl filled with candys", but this one is a "high class" decoration, ideal for your skingrad home

I've checked through, and you can safely sell them; that's what they're for. They have no functional purpose in the game. They're simply non-usable items to be collected as loot, just like the gemstones.