New ore for The Creaking

more common in the creaking let there be tin an ore that you can combine with copper in to make armor and tools stronger than stone and less durability than iron and more mining speed.
If not add iron nugget ore blocks in the creaking and you can make bronze armor (& tools) with nuggets and copper
My reasoning is:
1. New Ore
2. Use for Copper
3. Won't be as useless as old copper because it compliments it
3.1 Could also be used as back-up armor incase you die and lose your stuff