In my world, the price of zinc has recently risen to be double the price of gold for reasons that are outside of the scope of this question. This question works under the assumption that the world is more or less identical to our own technologically.
What alloys that involve zinc would no longer be useful or economically/commercially viable to make under these circumstances?
For example: Brass as a material will now be more valuable if it is melted down for zinc and copper, and will probably not be made or used in the way it was prior to the change in zinc prices.
I'm wanting to make sure there aren't any zinc alloys that I'm forgetting to account for. I may have another question about what could replace these alloys, but this question is Specifically about the economy aspect of this change.
Edit: here is the followup question What alloy could replace brass in most applications?