Gold nuggets for upgrades

Can anyone tell me what levels had gold nuggets so I can do my last upgrade and get my award. Thanks for any help.

I'm looking for two more also. Don't know how I could have missed them. Guess I missed a trade or a chest.

You know you can't replay the levels and get ingredients, right? The game will give you supplies instead, unless you missed a chest on a particular level.

If you haven't played the 20 bonus levels, you can get ingredients there.

However, I do know that there was bronze in chests on levels 6, 8, 10, 12, 15, B5, 18, 21, 24, B8, 29.

The numbers in blue had 2 pieces of bronze.

P.S. Orichalcum is golden bronze, thus I shorten the name.

Ty level 10 was a trade so it worked. Now have all the achievements. Thanks

I'm almost done with all the regular levels, so I'll have a spreadsheet with all the ingredients in the main game. Whew!

Had the same as tmgames and found one golden nugget at the merchant, where I forgot to trade.

Now, I have to find the second and last one!
Crossing fingers!

Edit: found the last one in level 24!
Finally, I've got all my trophies!

One thousand times thank you, Hespera!